I think it's common name is Paedocypris it's a species of carp ,Paedocypris progenetica, Indonesian island of Sumatra in a acidic swamp and tea colored.
My popularity has come about because I suit heavily planted tanks, because I generally wont eat the foliage. The tanks can be large or nano . I swim but have no fins and come in a range of colours and tolerate a range of temperatures. What am I ?