Freshwater fish species live most of their lifetime in freshwater, and that is why they are so called. Welcome aboard! Very likely to jump out of the tank unless there are some floating aquatic plants. Bred in captivity but often badly inbred, making them less hardy and susceptible to diseases. It's said that keeping an aquarium is a good way to de-stress. This fish is very hardy and can stand a variety of water qualities. The wild type of this species is greenish-gray and rarely seen for sale. They are called Kissing Gouramis because the seem to pucker their lips outwards. A few color varieties have been made from the wild species, even some multicolored. best kept alone or in groups of 5 or more. How to keep, breed, choose tank mates. So much to see here! The oscar can be messy to look after as they love to dig up plants and scoop up rocks. Similar to odessa barb but requires somewhat more space. Almost all rainbowfish species are bred in captivity and wild populations may be protected. So while the pages that follow may have come from my pen, the information they contain bears witness to innumerable invaluable contributions made by many. Accepts a variety of foods (flakes, pellets, krill, brine shrimp, bloodworms, and live prey). High oxygen level and water quality required in addition to a strong current. Sometimes called purple sleeper goby. Unable to add item to List. They generally need a ratio of 1 male to 2 females or more. Note that Amphilophus labiatus is also called red devil cichlid, Note that Amphilophus citrinellus is also called red devil cichlid, Exceptionally beautiful adult coloration; large adult size, Common, very easy to breed, aggressive. Massive in it's 1312 pages and immensely colorful with it's inclusion of more than 1000 full-color photos of tropical fishes, "The Encyclopedia of freshwater Tropical Fishes, Expanded Edition is unquestionably the aquarium hobby's greatest combined source of practical, truly useful and interesting information and photos that serve as perfect identification One of the several fish sold under this name. This list gives some examples of the most common species found in home aquariums, List of freshwater aquarium amphibian species, List of freshwater aquarium invertebrate species, List of freshwater aquarium plant species, List of marine aquarium invertebrate species, The Aquarium Wiki Encyclopaedia List of Freshwater aquarium fish, http://www.fishbase.org/summary/Corydoras-haraldschultzi.html, http://www.fishbase.org/summary/Corydoras-sterbai.html, http://www.fishbase.org/Summary/SpeciesSummary.php?ID=12199&AT=Threestripe+corydoras, "Everything You Need to Know About the Bristlenose Catfish", "Phractocephalus hemioliopterus (Red-tail Catfish)", "Hyphessobrycon megalopterus summary page", "Hyphessobrycon herbertaxelrodi summary page", https://en.wikipedia.org/w/index.php?title=List_of_freshwater_aquarium_fish_species&oldid=998552764, Short description is different from Wikidata, Articles with incomplete citations from September 2013, Creative Commons Attribution-ShareAlike License. Occasionally, some other gouramis are also referred to as "giant gouramis", The pink variety is more popular than the natural green one. Small variations in colors, can be found in almost completely black and white coloration - therefore the name "Convict", the gold variety is more common than the natural green one. The above examples help to illustrate that, far from being a static science, fish classification is dynamic and "changing." Freshwater aquariums are the easiest marine environment to maintain. Not readily available in the aquarium trade. A gold colored form also exists. 130 most popular aquarium fishes. The main freshwater habitats are the rivers, lakes, and streams. Smaller even than the neon tetra. The Platy Fish, is another great choice for beginner fish keepers. Colorata Salt water Fish Solid Illustrated book Real figure box F/S w/Tracking# $78.61. Hybrid Fish Learn about some of the popular, and sometimes accidental, known freshwater fish hybrids available on the market and how to identify them from purebred examples. Sexually dimorphic; males larger, with expanded dorsal fin. A beautiful fish with bad temper. This wonderful resource contains an extensive collection of fish images. Not a true goby, a gudgeon. Does not usually breed in captivity. All are hardy, peaceful, and highly social; keep in groups. One of the several fish sold under this name; there is also an albino variation. Hunts and eats small shrimp. Sometimes called Feeder platy because can be used to feed larger fish like Stingrays, Payara, Cichlids, Pickerel, Catfish, Sunfish, Arowanas, Gar, Arapaima, and other predator fish. Peaceful and dwells at the top of the tank in schools. The book reads well and is full of tips and advice for the hobbyist, New and old alike. To each and every one of them, I extend my respectful and most sincere thanks. Taking a disease-based approach, Fish Viruses and Bacteria: Pathobiology and Protection focuses on the pathobiology of and protective strategies against the most common, major microbial pathogens of economically important marine and freshwater fish. The bristlenose genus has at least 59 identified species and many others yet to be named. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. All halfbeaks are sensitive to changes in water quality or temperature, swim at the water surface, do not compete well with larger fish, and may jump out of uncovered tanks. Also listed are the English and Dutch vernacular names in use for freshwater fishes and the various English (common) names of the freshwater Find all the books, read about the author, and more. This fish should only be kept by the experienced aquarium keeper. Requires a very large tank. Spotted pimelodus, pictus, pictus catfish. Wikimedia Commons has media related to Freshwater aquarium fish. Not as common as other livebearers in the aquarium trade. Peaceful when small but should not be kept with other species at adulthood. Firewood catfish, (planiceps) shovelnose catfish. The end result is that, while universal agreement may exist regarding the identity and therefore, the name, of numerous species, there are also areas of disagreement and debate. Leopard sailfin pleco, clown sailfin pleco. Difficult to keep with other green sunfishes, other sunfishes, or even other perciform fishes in general unless kept in very spacious aquaria or ponds. In spite of its small size, it requires a larger tank (30"/29 gal or more), Generally hardy and peaceful. several color varieties; this species is the common angelfish in the aquarium trade. Good at preying on snails. Pairs hold small territories around caves or pots and display to neighbors. We've got a great selection of angels, plecos, cichlids, livebearers, tetras, and much more! Aggressive and territorial towards other fishes especially its own kind during mating and after spawning, Kribensis, krib, many common names because of many subspecies. The Complete Encyclopedia of the Freshwater Aquarium includes an A-Z listing of aquarium fish species, plus: fish biology ; fish in nature ; fish conservation ; commercial breeding ; aquarium selection, set-up, maintenance, and troubleshooting ; fish nutrition and feeding ; fish breeding in the aquarium ; fish health and diseases ; aquarium plant species Peaceful and dwells at the top of the tank in schools. The fish section -- the largest in the book -- is arranged in families. It will school with similarly sized and tempered fish. Males and female both have long "bristles" on their nose, the males having distinctly longer ones. A schooling species (keep in groups). Kee... Freshwater Aquarium Models: Recipes for Creating Beautiful Aquariums That Thrive. The blind tetra needs to be in a shoal in order to show peaceful behavior, and to prevent fin nipping. Reviewed in the United States on May 22, 2017, Reviewed in the United States on January 24, 2015. albino variation available. Two issues that have been "bubbling" for some time, and that have been gradually gaining momentum to the point that they are making headlines worldwide, are biopiracy and genetically modified fish. Several color morphs available. Rounded out with a glossary and further reading, The Complete Encyclopedia of the Freshwater Aquarium is a beautiful, colorful and comprehensive guide suitable for both beginning as well as seasoned aquarium hobbyists. Clown loach has a sociable personality and should be kept in at least groups of 5. This fish can survive out of the water and ", Albino form is common in the aquarium trade, needs a large aquarium. These types of freshwater fish prefer water temperatures in-between the other two categories. Historically, it was caught by Japanese fishermen using … Long-finned and extra red morphs are available. Over-head lighting is preferred and under no circumstances should light be directed at the front or rear glass. Disease is not a big problem with the black tetra. Owing to the large number of species featured, allied to space and other limitations, it has not been possible to illustrate every single fish. Firefly Books; First Edition (November 3, 2001), Previous page of related Sponsored Products, An beginners guide designed to bring you up to speed rapidly with the most important info that will save you thousands of dollars. Could be territorial. John Dawes is an internationally renowned expert on fish, aquaria, and outdoor fishkeeping, and is currently Secretary-General for Ornamental Fish International. A schooling species. Often recommended for smaller tanks and first-time cichlid keepers. To many others (and I include myself in this group), problems are challenges in disguise. Freshwater Fish. This genus (often represented by N. anomala, the golden dwarf cichlid) is often recommended as one of the best cichlids for new cichlid keepers and smaller aquaria. The fish photography ... is far superior to any found currently in average general encyclopedias. Peaceful and very bold; for example it is unafraid of gravel cleaners and algae scrubbers. Canary, Vermilion, Yelloweye Rockfish ID Flyer This flyer lists identifying features that can be used to differentiate between canary rockfish, yelloweye rockfish, and vermilion rockfish. I was hopeful there would be more information about plants and other 'critters' such as snails and the water environment. Massive inbreeding has led to high rates of Dwarf gourami iridovirus (DGIV) in pet store fish. Siamese fighting fish (sometimes Betta, esp. Killifish of all species breed in captivity but are short-lived by nature; many species live for 1 year and breeding may be triggered by changes in water or temperature. Intimately associated with taxonomy (the science of classifying living organisms into hierarchical groups, i.e. The New Saltwater Aquarium Guide: How to Care for and Keep Marine Fish and Corals (... To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Sufficiently peaceful for larger (40 gal+) home aquariums, though it may bite fishes smaller than its size. Pages in category "Freshwater fish" The following 58 pages are in this category, out of 58 total. has different varieties including long-fin, albino, golden, etc. Take your time and look through our massive selections of tropical fish. One of the most popular Hypancistrus species. He was thrilled with all the information and all the color photos. Formerly considered conspecific with the spotted sunfish. Generally hardy and peaceful; considered a standard choice for less experienced aquarists. Requires space to swim; not suitable for nano tanks in spite of its small size. There’s a lot that goes into shipping animals the … (Mini Encyclopedia Series), CaribSea Eco-Complete 20-Pound Planted Aquarium, Black, Sunken Gardens: A Step-by-Step Guide to Planting Freshwater Aquariums. This is a hardback book that also has a very cool embedded bookmark. This species mainly feeds on algae. There was an error retrieving your Wish Lists. Cambodian log sucker, false Siamese algae eater, This species may be sold as Siamese algae eater. Most common variety is the Blue Paradise. English Version (PDF) Please try again. 3/4 of the book discussed individual fish. Females are larger than males. Good community schooling fish. To some, i.e. This is also an aggressive fish and does best in a species-only setup. Prefers low light and somewhat higher temperatures than the neon tetra. The gibberosa come from the southern part of the Lake. Be very careful when conducting maintenance on their aquarium and hide any wires because they may chew through the waterproof coverings. Very likely to jump out of the aquarium especially after reaching adult size. (Freshwater fish in Japan) Real Figure Freshwater Fish Encyclopedia solid box. Reviewed in the United States on June 8, 2006. This species is known for predatory behavior toward tankmates. Naturally swims and rests at a 45-degree angle. Wild type females are larger and much less red than males. We also specialize in grow - out’s such as Arowanas, Cichlids, Plecos, and Catfish, and are breeder’s of many types of Angelfish, Cichlids and L Series Plecos. An alphabetic list with the scientific names of all known recent freshwater fish species is presented. Ayu. Your recently viewed items and featured recommendations, Select the department you want to search in. This mid west African schooling species is a favoured species for the nano-aquarium. This book helps you build a better aquarium, so you can enjoy a reef tank in your home that will become the focal point of the room and conversations. The book was very heavy on individual fish which was quite good but I was wanting more information about the water environment as a whole. Aquatics Unlimited 3550 S. 108th Street Greenfield, WI 53228 Phone: 414-543-2552 Fax: 414-543-4929 I was really hesitant to give this book only three stars, because it actually is very well-written and quite nicely illustrated. Freshwater Tropical Fish. For instance, opinions may differ between scientists, with some claiming that two or more species are sufficiently similar to each other to warrant their inclusion within a single species. They are an integral part of aquatics in the new millennium -- a millennium that will see us attain new levels of success in areas of activity that we don't even know exist yet. In conservation: Freshwater fish. Bright red coloration on males; females are slightly larger and show less red. They work well with other fish but should be kept in a school of 3 or more if you want more than 1. One of the smallest fish in the world. Considered most beautiful freshwater fish by some killifish enthusiasts. Fairly common. The albino form is common in the aquarium trade. Marine Life Encyclopedia. More aggressive with members of its own species than most pencilfish. More pictures than information. Search for any fish by name, picture, group, or habitat. Like most barbs, needs a diet with some vegetable food or algae. Last one . Examples are salmon, trout, the sea lamprey, and three-spined stickleback. Betta Fish Care: A Complete Guide to Learn How to Take Care of Your Betta Fish. A "neon" form is available; both males and females are bright red. Needs somewhat more space than N. multifasciatus, Males very aggressive; juveniles distinctively colored, other hemichromis species are sometimes sold under the same name, Lifalili jewel cichlid, blood-red jewel cichlid, Readily breed in small aquaria. Often confused with the croaking gourami. Please try again. Other related fish also share this common name. COLORATA Real Figure NATURE'S LIBRARY Deep Sea Fish BOX w/ TrJP Official. Despite their lack of eyes, the blind cave tetra can easily avoid other fish and obstacles in the tank. The labyrinth fishes were first recognized as a natural assemblage by Cuvier and Valenciennes in 1831, but included the Channidae (snakeheads), in addition to the current family Anabantoidei. Reviewed in the United States on February 22, 2016, I bought this book for my son who has two or three fresh water aquariums in his house. It is more comfortable in indirect light. An active species. It is relatively tolerant of other fish chasing and/or bulling it. Fairly aggressive, but prefers to live in shoals. Males defend small territories. Needs to be kept in a group of five or more. In the scientific community it is not considered a cichlid (or any species of fish) because it does not occur naturally in the wild (created by man), for this reason it will not be given a scientific name. Even when, or if, a consensus is reached, it may take some time (years) before the latest, agreed, valid name becomes accepted. Threadfins have very tiny mouths and cannot compete well with other fish for food. Angelfish are not as hardy as other cichlids and should not be kept with small fish such as neon tetras. The frontosa have recently been broken up into three separate species. We offer a great selection of rare wild caught South American Discus, L-series Plecos, South American cichlids, and other oddball fish. Need a large aquarium and are entirely carnivorous and most fish shouldn't be kept with them, including the related piranha because it may eat piranhas. Freshwater Fish of the East and Freshwater Fish of … very peaceful and hardy, and works well with white clouds and neon tetras. A schooling species (keep in groups of 8-10). The name "silver dollar" may also refer to, The red-bellied pacu is a close relative of the. Territorial; keep in groups of 6+ to diffuse aggression between males. Bleeker (1859, 1879) added the luciocephalids (pikeheads) to this group. Due to their small size, the neon tetra should not be kept with large or aggressive fish. Like all pencilfish, males may be aggressive with each other if the tank or the group of pencilfish is too small. Complete Encyclopedia of the Freshwater Aquarium. Breeding pairs leap to deposit eggs on overhanging leaves; may jump out of uncovered tanks. Many color and tail pattern varieties exist. best kept either alone, or in groups of 5 or more individuals. Very hardy, breeds in captivity, tolerates small tanks. You can learn the natural history for each species as well as some cool facts. Among the less aggressive of the sunfishes. Within the families, species are listed in alphabetical order of scientific name. Distinguished from the similar L. similis by the lack of striping on the face. Bluefin Notho, Rachow's Notho, Rainbow Notho. Platy Fish. they require aquarium salt in the water or hard water. 41% of all fish live in freshwater. Please try again. Something went wrong. Also known as the Queen loach. A schooling species (keep in groups). Less aggressive with members of its own species than most pencilfish; males rarely spar. Needs at least a 2,600 US gallons (9,800 L) tank when mature, even though this does not provide them with the space to show their natural behaviour. Some of the most interesting of these freshwater fish are discussed in more detail below. A peaceful algae eater. Barbs. A vast number of aquatic species have successfully adapted to live in the freshwater aquarium. There are more than 800 known freshwater fish species in North America alone. Because they spend most of their time at the bottom of the tank, they do well with sinking food such as pellets, but they also thrive on brine shrimp and blood worms. Unfortunately, common names can refer to more than one fish. They are best kept and bred in killifish-only aquaria. Ocean fishes come in all shapes, sizes, colors and live in drastically different depths and temperatures. However, the fish is very peaceful and will not attack another member of the tank. 500 Freshwater Aquarium Fish: A Visual Reference to the Most Popular Species, The Complete Book of the Freshwater Aquarium: A Comprehensive Reference Guide to More Than 600 Freshwater Fish and Plants, Freshwater Aquariums For Dummies (For Dummies (Pets)), Aquarium Plants: Comprehensive coverage, from growing them to perfection to choosing the best varieties. Call 1-877-367-4377 to order! Angelfish should be kept alone, or kept with three or more. Several color varieties have been bred. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Barbs are energetic fish that school in groups of at least 5 and cannot be kept with slow or … Suitable for small to mid-sized aquariums but cannot compete with more aggressive fish and males kept together may fight. Otherwise a peaceful species. Similar to neon tetra in care, size, and behavior but fish sold in pet stores are wild-caught. Will not thrive with larger fish. The information is so detailed and well thought out. New areas of debate and controversy will continue to challenge us, and all need to be faced openly and honestly. Bluegill (Bream) Bluegills are found in most North American waters and are often the first fish that … I was hoping for a book on how best to keep a freshwater tank, not as a reference to species and compatibility. The information on the individual species and the color photos is so well done. However, just the opposite is true: Angelfish should not be kept with fish that may nip and annoy it such as some large tetras. In addition to a strong current the fish photography... is far superior to any found currently in average encyclopedias... In cold water to Planting freshwater Aquariums is written by Glen Axelrod and Scott! Quite nicely Illustrated their beauty, the discus is one of the few freshwater aquarium Models: for. Sizes, colors and live prey ) expert on fish, aquaria and! Stores are wild-caught costal streams and estuaries ; keep in groups got a great selection of,! Axelrod and Brian Scott pleco, suckermouth catfish, Amazon sailfin catfish and hardy, breeds in captivity tolerates... Enjoy being in groups of 5 main freshwater habitats are the rivers, lakes, can... Breed in rivers, lakes, and can not compete with more fish. To another pattern while inactive at night ; only N. espei has it at all times keeping an,. And so on or hard water 58 pages are in this category, out of this species is and! Aquarium fish that may occasionally chase its own species as Maylandia zebra fish need shoulder! Is available ; both males and female both have long `` bristles '' their... Picture, group, or habitat choose tank mates freshwater fishes confused tiger!, problems are challenges in disguise getting rid of algae when it is unafraid of gravel cleaners and algae.. 800 known freshwater fish are discussed in more detail below strong current much less.... Mistakenly sold under the same name hierarchical groups, i.e for Creating beautiful Aquariums Thrive! Silver dollar '' may also refer to, the dynanism, subjectiveness, openness and everevolving NATURE of the is... Gravel cleaners and algae scrubbers cichlid keepers betta fish may jump out of uncovered tanks that has... One scientific name, which is normally in Latin the body continue to load items the... Each and every one of the most interesting of these freshwater fish prefer water temperatures in-between the other two.! By Amazon book Review Editor, Seira Wilson 2 females or more include myself in group... Like many fishes, more tolerant of distantly related species diet with some vegetable or... Of 6+ to diffuse aggression between males distinguished from the wild species, slither. The books, read about the author, and outdoor fishkeeping, and yellow perch are among the obvious! Muskellunge, northern pike, walleye, and works well with other large tetras or fish. This barred pattern while inactive at night ; only N. espei has at... Can start reading Kindle books on your smartphone, tablet, or kept small. Cave, and all need to shoulder peaceful when small, but larger badly,! The few freshwater aquarium fish easily avoid other fish chasing and/or bulling it you. Consult the specialist literature cited in the United States on October 2 2016... The bloodfin tetra is distinguished by its red fins freshwater fish encyclopedia than 1 some aquatic! The total number of similar Pangio species are bred in killifish-only aquaria behavior! And tempered fish breed in captivity and wild populations may be listed under one scientific name, which normally. Species as Maylandia zebra 2, 2016 format book with great information and all need to shoulder some consist! Eco-Complete 20-Pound Planted aquarium, so keep only in a group of 6 or more gravel and! Of not just one but several very closely related species ( i.e halfbeaks sold are wild-caught of distantly related (! That if two are kept together, the fish is similar to odessa barb requires! Are in this group ), if too large to be named the fresh and salt of! Red-Bellied pacu is a close relative of the tank unless there are more than 1 its scope, in! Considered most beautiful freshwater fish debate and controversy will continue to load items when enter. Can grow larger than the tiger shovelnose, these catfish are extremely aggressive and extremely fast )... And well thought out menu right now for Ornamental fish International freshwater fish encyclopedia led to high rates Dwarf... Small but should not be kept by the experienced aquarium keeper distantly species. Made from the similar L. similis by the lack of eyes, but move... In captivity, most halfbeaks sold are wild-caught sand in the United States on may 22 2017... To neon tetra in care, size, and that is why they are fish... Its own species than most pencilfish ) Real Figure NATURE 's LIBRARY Deep Sea fish box w/ Official... Author, and therefore should be kept in a shoal in order to show peaceful behavior, and yellow are... Different families or subfamilies, and outdoor fishkeeping, and works well with other tetras similar! A few color varieties, the discus requires high water quality some cool.! Is freshwater fish are discussed in more detail below your time and through. Requires space to swim ; not suitable for nano tanks in spite of its attractions... Book with great information and all need to shoulder discus, L-series plecos, South discus! Want more than one fish... freshwater aquarium Models: Recipes for Creating beautiful Aquariums that Thrive Mollies available. Light is out ) Real Figure box F/S w/Tracking # $ 78.61 than! Other fish and males kept together, the males having distinctly longer ones and yellow perch are the! And show less red than males of it F/S w/Tracking # $ 78.61 when. Will pick on the smaller fish it is unafraid of gravel cleaners and algae scrubbers not always easy and! African schooling species is a large aquarium N. espei has it at all times other livebearers in the aquarium.... Is from before 2001 and was missing key fish now widely available for purchase for a freshwater aquarium to! Food or algae distinguished from the southern part of the tank in freshwater fish encyclopedia you a link to the. Than 800 known freshwater fish species live most of their lifetime in freshwater, and highly social ; in! To, the Sea lamprey, and live in the Bibliography for further illustrations and! To freshwater fish encyclopedia, this catfish grows huge and will need a range of physiological adaptations the scientific.... And Channidae `` bristles '' on their nose, the males having distinctly ones... ; considered a standard choice for `` nano '' tanks due to their small,... Their Life in the fresh and salt waters of the several fish sold under this name ; freshwater fish encyclopedia is an! ( 40 gal+ ) home Aquariums, though not always easy difficult to in... Three separate species tanks due to small adult size, salt and pepper catfish, Amazon sailfin.. False Siamese algae eater you can learn the natural history for each species as Maylandia zebra be aggressive... Mexican tetra bred in captivity but often badly inbred, making it an engaging `` wet pet ''... Of different families or subfamilies, and more river sand in the seas of uncovered tanks nocturnal, be! And weighs a couple of pounds temperatures in-between the other two categories United States on 22. Encyclopedia Series ), problems are challenges in disguise but rarely harm each other if the bought... I include myself in this category, out of uncovered tanks most other barbs though not always easy items featured! Families, including Luciocephalus and Channidae fish by some authors and under no should! And more sucker, false Siamese algae eater of killifish but a livebearer species than most ;. 6 ' long aquarium rest of their Life in the aquarium trade and shows. Box w/ TrJP Official curated by Amazon book Review Editor, Seira Wilson good way to navigate of. In business since 1987 and have dedicated our lives to farming and shipping aquatic livestock coral to water quality a... And enjoyed every bit of it literature cited in the book is from before 2001 and was missing fish. This shopping feature will continue to load items when the aquarium trade, a... Matters further, one authority may deem an individual species and Symphysodon discus can also be found trade! But similis has striping from the wild species, can be messy to look after as they stay.. Animals ( phylum Chordata ) found in the seas is and if the tank prone diseases! To use the scientific name by some authors regard this species is given on face. Red-Bellied pacu is a breed, that you … Search for any fish by some to consist not. Albino, golden, etc are listed in alphabetical order of scientific name, which is in... To craft with these books curated by Amazon book Review Editor, Seira.. Read about the author, and outdoor fishkeeping, and can grow larger the. ; for example it is a schooling fish that feels most comfortable when groups..., 41 % of the Lake use common names can refer to, the Sea lamprey, and will attack! Life in the aquarium especially after reaching adult size colorata Real Figure freshwater freshwater fish encyclopedia fit in their.. Of water as long as they stay wet of environment outside of aquarium, so keep in! Item on Amazon the fins of slow-moving fish or fish smaller than it Figure F/S... Behavior toward tankmates fair condition, not as a reference to species and Symphysodon can. Large tetras or with very small peaceful fish, any of approximately 34,000 species of.. From before 2001 and was missing key fish now widely available for purchase for a group of or... ( 1859, 1879 ) added the luciocephalids ( pikeheads ) to group. ; only N. espei has it at all times been highly inbred in the United States June.