Razor turtles cannot be mixed with tropical fish, because razor turtles are omnivorous animals, and their food contains small fish and shrimps. If they are mixed with small tropical fish, small fish can easily be eaten by razor turtles as food. Although they can be mixed with large tropical fish, razor turtles are highly active and aggressive, and large tropical fish are easily attacked by razor turtles. In addition, the metabolism of razor turtle is relatively high, which seriously pollutes the water quality. Tropical fish have higher requirements for water quality, and it is difficult for tropical fish to adapt to dirty water quality when raised together.

Razor turtles are ornamental turtles, and they can be mixed with other turtles during breeding. But before polyculture, breeders need to know the habits of razor turtles first. Razor turtles are deep-water turtles, and breeders should also choose turtles that like deep water. Moreover, the character of razor turtle is lively and has certain attack power. Breeders should also choose turtles with the same size and character. To sum up, the turtles suitable for polyculture with razor turtles include map turtles, round Australian turtles, musk turtles and so on. Although the razor turtle is not very large, it is highly active. Breeders also need to prepare a large container for them to ensure that they have enough room for movement.