List of freshwater aquarium fish species - Wikipedia

A vast number of aquatic species have successfully adapted to live in the freshwater aquarium
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Many of our salmon and trout species are anadromous -- meaning they are born in our streams, they migrate to the ocean to feed and grow into mature adults, then they return to their natal stream to spawn. These fish, therefore, are both freshwater and marine species, depending on the time of year.Of this group, the species of Pacific salmon, members of the genus Oncorhynchus, are by far the most important and iconic. There are 7 species of the genus Oncorhynchus that inhabit King County waters: Chinook or king salmon, the largest of the group; chum or dog salmon; sockeye salmon; coho salmon; pink salmon; steelhead trout; and Coastal cutthroat trout, an inhabitant of even the smallest streams in the county.
Freshwater Fish. Mollusks & Crustaceans. Species List. National Park Service. U.S. Department of the Interior. Congaree National Park. Minnows & Small Fish.
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Yes, there is such a thing as freshwater puffer fish! In fact, there are several species of freshwater puffers, but this one is the smallest (and the cutest!) and can be kept in a tank as small as 5 gallons. Pea puffers max out at just over an inch in size and should only be grouped with each other, small catfish, and small gobies such as the bumble bee goby. Despite their very tiny size they can be quite aggressive and do not make suitable tankmates for other small, free-swimming fish and can be difficult to house with larger species as well. Pea puffers can also be aggressive towards each other and care should be taken to house a 1:2 ratio of males to females and no more than 3 puffers should be housed in a 5-gallon tank. Their mouths look small, but may eat smaller fish, as they can open their mouths very wide
Photo provided by FlickrOrnate Pimelodus, Pimelodus ornatus
Photo provided by Flickr13 Best Freshwater Fish For Your Home Aquarium | Fish Keeping Advice
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From small, rarely seen species of darters to large game fish like salmon and muskellunge, New York's waters are home to an incredible variety of freshwater fish species. Over 165 fish species inhabit the state's 7,500 lakes and ponds and 70,000 miles of rivers and streams, providing New York with one of the richest fish faunas in the nation.Fish that are called 'eels' have a long snake-like body. Most are without a separate dorsal and pelvic fin, rather their fins appear merge together with the tail fin to form a continuous fin fringe. Most also have small gill opens, often just a single gill slit at the throat. Eels vary in size but the average size of most species is from between 12 - 36 inches (30 - 90 cm) in length. In their native regions many of these fish are considered a good tasting food.
There is only one order of fish classified as true freshwater eels, this is the Anuilliformes Order of eels.
Aquarium eels also include many so-called 'freshwater eels' that are not true eels. Yet they are all commonly called "eels" in the aquarium industry. Other Eel-type fishes include:
Finally there are some fish that are often referred to as eels but that are not. These fish don't usually have the word 'eel' in their common name. These include such critters as Bichers and Ropefish, Knifefish, Eel Catfish, Lungfish, and Slimy Eels. Most of these are included in their own categories, see: Bichers and Ropefish, , , and to find them.The freshwater marshes and forested wetlands shared similar fish assemblages. Of the 33 species found in these habitats, 16 were common to all. Small fishes utilized shallow-water areas such as herbaceous prairies and cypress prairies when those habitats were inundated. As the shallow habitats dried, the relative abundance of those fishes in nearby swamp forests and cypress strands appeared to increase. This pattern was reported by Carlson and Duever (1977) for flagfish () and least killifish () populations during the annual dry-down of Corkscrew Swamp, and also occurs in the Everglades wetlands (Loftus and Kushlan, 1987). Small-bodied species, such as the eastern mosquitofish (), were often the most ubiquitous and numerous fishes in the samples ().The Atlantic Stingray is the same fish common along the coast; they are the ones where we see signs to shuffle your feet to avoid getting stung. This species inhabits shallow coastal waters over sandy or silty bottoms, estuaries, and lakes. It has been know to venture into brackish waters where it is called the Freshwater Stingray. This ray is one of the smallest stingray species, it attains a maximum length of 24 in (61 cm) and a weight of 11 lb (4.9 kg). You will often see large schools swimming into bays during the spring and summer months in tropical waters. This stingray feeds on bivalves, tube anemones, amphipods, crustaceans, and Nereid worms. Numerous species of sharks, such as the tiger shark and the bull shark, are major predators of the Atlantic Stingray. In freshwater habitats, they may be preyed upon by American Alligators.