Rainbow sharks generally do not take the initiative to bite fish. First of all, its character is relatively mild, although it likes to attack the same kind, but if there are no special circumstances, it will not take the initiative to attack other small fish. Secondly, its courage is very small, in the process of breeding can also be found, it generally carries out activities in aquatic plants.
However, it should be noted that it also has a strong sense of territory, so if a new fish enters the fish tank, it will harass the fish, and when it feels threatened, it will also take the initiative to bite the fish. Therefore, when mixed culture, attention should be paid to the use of a larger tank to provide adequate growth space for them. This will reduce the number of fish bites.
Rainbow sharks can be mixed with most fish, but it is best not to mix with immortals and so on. Because when rainbow sharks grow up, they may attack angelfish on their own initiative. But it is also friendly to other small fish, and generally does not take the initiative to attack. At the same time, because rainbow sharks like to eat live food, when mixed with smaller fish, we should pay attention to the number of rainbow sharks should not be too large, generally one to two is appropriate.
