Depends on the species and it's part in the food chain. Predatory fish eat meaty foods such as other fish, crustaceans, and insects. Some live off plant matter and some eat a mixture of the 2.
This depends on the type of fish
the fresh water slugs are omnivores some of them eat plants and may also survive on fishes for there blood.
John F. Scarola has written: 'Freshwater fishes of New Hampshire' -- subject(s): Fishes, Freshwater fishes
anadromous fishes - live in ocean reproduce in freshwater or catadromous fishes - live in freshwater but reproduce in saltwater amphidromus fishes - move between fresh and saltwater for non-reproductive reasons
The Philippines has 308 species of freshwater fishes, and more than a thousand species of marine fishes. Click on the Related Link below for a list of freshwater fishes in the Philippines.
fishes
R. S. Crass has written: 'Freshwater fishes of the Natal' -- subject(s): Freshwater fishes, Fishing
H. K. Larson has written: 'Freshwater fishes of the Northern Territory' -- subject(s): Freshwater fishes
Francis H. Sumner has written: 'Age and growth of some Oregon freshwater fishes' -- subject(s): Freshwater fishes, Age, Scales (Fishes), Growth
Freshwater (whitewater) fishes include halibut, salmon, and red snappers.
M. Poll has written: 'Revision des Characidae nains africains' -- subject(s): Characidae, Classification, Fishes 'A translation of certain extracts from \\' -- subject(s): Fishes, Freshwater fishes 'Les genres des poissons d'eau douce de l'Afrique' -- subject(s): Fishes, Freshwater fishes 'Revision des Synodontis africains' -- subject(s): Freshwater fishes, Synodontis
trout and bullheads
bass other fishes