1. Fish Food Preferences

2. Herbivorous : i. e. Labeo fimbriatus, L
Herbivorous : i.e. Labeo fimbriatus, L. rohita, Ctenopharyngodon idella
Detritivorous : i.e. Labeo calbasu, Mugil cephalus
Omnivorous : i.e. Etroplus suratensis, Cyprinus carpio, Tor putitora
Planktivorous : i.e. catla - zooplankton feeder, silver carp - phytoplankton feeder
Carnivorous : i.e.Wallago attu, Mystus singhala

3. The carnivorous fishes further classified as
Insectivorous - i.e. Trout
Carcinovorous - i .e. Black bass
Malacovorous - i.e. Black carp
Piscivorous - i.e. Barracuda
Larvivorous - i.e. Gambusia affinis
Cannibalistic - i.e. Lates calcarifer

4. Based on their Position in Water Column
Surface feeders
Mid-water or column feeder
Bottom feeders