Coarse fish
As Fried fish is known fish species that no other fish hunting (unlike, for. Example perch ) and exclusively on insect larvae feed or as well as snails and worms at the bottom of lakes or rivers plankton filter from the water. In addition, one also counts the herbivores among the fish to the non-predatory fish. Fish that feed on other fish, in contrast, are called predatory fish .
The non-coarse fish include, for example, the carp and the barbel . Plankton eaters are z. B. the herring and some coregons (whitefish, whitefish, vendace), a Central European herbivore is the rudd .