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Suitable for small to mid-sized aquariums but cannot compete with more aggressive fish and males kept together may fight. Several color varieties available. Massive inbreeding has led to high rates of Dwarf gourami iridovirus (DGIV) in pet store fish. [63] 72 – 82 °F (22 – 27 °C) [64] 6 - 7.5 [64] Thick-lipped gourami: Trichogaster labiosa
The entire Canadian population of this small freshwater fish lives along a roughly 60 kilometre stretch of the Sydenham River in southwestern Ontario, where its presence was discovered only in 1972. The blackstripe topminnow is a fairly hardy fish although its greatest threats come from changes to its habitat due to human activity. [4]
Mosquitofish are small in comparison to many other freshwater fish, with females reaching a maximum length of 7 cm (2.8 in) and males a maximum length of 4 cm (1.6 in). The female can be distinguished from the male by her larger size and a gravid spot at the posterior of her abdomen.
Freshwater stingrays are often kept in aquariums, but require a very large tank and will eat small tank mates. [ 18 ] [ 26 ] Although generally non-aggressive, their venomous stinger represents a risk and on occasion aquarists have been stung. [ 32 ]
Arowanas are solitary fish and only allow company while young; adults may show dominance and aggression. Some compatible species often partnered with this fish are clown knifefish, pacu, oscars, jaguar cichlids, green terrors, gar, tinfoil barb, Siamese tigerfish, and any other somewhat aggressive fish that cannot fit in the arowana's mouth ...
The hybrid fish are aggressive and have larger mouths than their bluegill parent. These fish also grow faster than other small mouth fish due to its bigger mouth. Greengills or hybrid bluegills are the most efficient in growth and can reach approximately 2 lbs or 0.91 kg in one year. [33]
Pterophyllum is a small genus of freshwater fish from the family Cichlidae known to most aquarists as angelfish.All Pterophyllum species originate from the Amazon Basin, Orinoco Basin and various rivers in the Guiana Shield in tropical South America.
The smallmouth bass (Micropterus dolomieu) is a species of freshwater fish in the sunfish family (Centrarchidae) of the order Centrarchiformes. [4] It is the type species of its genus Micropterus (black basses), and is a popular game fish sought by anglers throughout the temperate zones of North America, and has been spread by stocking —as well as illegal introductions—to many cool-water ...