1.   Although their names make them sound like large predators, they are actually tiny insect larvae.

2.   Both fish prefer live foods, such as worms, insect larvae and small fish.

3.   Diet in the wild consists of snails, crustaceans and insect larvae.

4.   Fish love food such as worms and insect larvae.

5.   In a planted pond the fish will find plenty of algae and insect larvae on which they can feed in order to survive.

6.   In soft-bodied insect larvae, where the appendages are reduced or absent, locomotion occurs through quite different physical mechanisms.

7.   Instead they have to consume foods such as shrimps, snails, algae and insect larvae.

8.   Other species eat worms or insect larvae.

9.   Unprotected by a shell, they are easy meat for insect larvae and flatworms.

10.   Wild specimens are known to feed predominantly on insect larvae but will also take algae and detritus.