Red-tails black sharks of course bear no relation to sharks. Their name is purely descriptive. They have a black, torpedo shaped body with a profile reminiscent to that of a sharks. This includes a sharp triangular shaped dorsal fin. Their bright red caudal fin (tail) completes their visual appearance and name.
As with any member of the carp family they are primarily bottom dwelling scavenger fish. Scavenger fish can be identified by their downward pointed mouths with varying sets of barbels on either side. Barbels are whisker-like sensory organs that contain taste buds much like your tongue. Their primary function is for locating food. They serve a secondary function of enabling the fish to find its way along riverbed basins at night or in murky water.
Red-tails are generally considered compatible in community tanks. Interspecies conflicts are rare. But a more robust fish such as barbs, larger tetras, and the less timid cichlids, are …show more content…
The dominant male will often chase the submissive male around. They have been known to harass their less dominant counterpart depriving them of any chance to rest or eat. This often results in the death of the submissive red-tail. Fellow bottom dwellers have also been known to bring out the red-tails territorial instincts. They may become combative with red-finned sharks and Siamese algae eaters. So if a red-tail is your scavenger of choice it is a good idea to allow him to be the king of his substrate