Fish species that belong to the caudal or trunk swimmers can be subdivided into Anguilliform, Subcarangiform, Carangiform and Thunniform swimmers. It comes in the list of different types of freshwater fish. In different types of fish in India, it will be one. This fish can be kept in a large school – it tends to inhabit the top and middle levels of the water column. White Cloud Mountain Minnow manages well in cold water and, therefore, kept in a pond in the yard in summer by pet lovers. When submerged, these fish must occasionally swim to the surface and gulp air or they will drown. Fish swimming styles . The fish prefers middle water layers, and it likes swimming in a school. Click here now to buy Neon Tetras. Of all the species of fish in the world, one quarter of them shoal and/or school for their entire lives, while about one half participate in the action for limited periods. Neon Tetras, shown above, a re schooling fish and they should always be kept in a group with at least 6 Neons. Mackerel species typically have vertical stripes on their backs and deeply forked tails. There is a transition from the eel (anguilliform), that moves the entire body, to the tuna (thunniform) that only moves the tail. They like small schools of minimum 6 species. Click here to read that we've changed our mind about the advice on this page! Family and History: Mackerel is a common name applied to a number of different species of pelagic fish, mostly from the family Scombridae.They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment. You should keep a school of six to eight fish in a 10 gallon tank. It means it is a pomegranate fish or ruby fish. Synonyms: Scythe butterfly, scythe-marked butterfly fish, Chaetodon falcifer; Protopterus annectens African lungfish Notable: Lungfish belong to a prehistoric group of fishes that lived over 300 million years ago. Flathead Grey Mullet: Scientific Name: The scientific name of flathead grey mullet is Mugil Cephalusi. This fish is a peaceful species but can sometimes get nervous around larger individuals. Lifespan: Their lifespan is usually for nine years. 24. Together this means that vast selections of fish school at some point or another, coming together to swim in synchronicity. Being a micro-predator, it feeds on worms, small insects, crustaceans and other varieties of zooplankton. It prefers temperatures between 72 and 80 degrees and a pH of 5.5 to 7.0.