Put them in separate tanks or put a divider in the tank.
Big fishes eat medium fishes as that's just part of the food chain.
no mostly big fishes are found in seas only small fishes present in dams.
Medium fishes eat small fishes as that's just part of the food chain.
Humans, and all the over big fishes when the barracuda is still a small fish.
small fishes keep inside the corals becuese with the scary big fish
They save them by having sharp spines
Yes, small fishes will eat shrimp as part of their diet.
paste clay on a big card board and plant plants on it make a small pond on it and fishes in it then small animals on the sides of eco system
Goldfish
if u want the big fish save a yellow fish and pull it in the big fishes face then he eats it u caught a mullet YAY
some times the angel fishes attack the star fishes of smaller size. I lost my finger star , it is of small size and attacked by blue ring angel fish... But for angel fishes it's quite difficult to attack the big size star fishes, because of their hard skin...
Because fishes have small brains.