I have a 5 discus fishes. There are about 4″-5″ insize. I always keep them in water temperature 28-30 degree Celsius. When they young, they eat well. But from the beginning of winter, they become less motion and do not eat well. So please can you help me to solve this problem.
During winter the temperature is low, normally the fish are not so active.
They do not eat much.
Raise the temperature to 29 – 30 degree C, then they will eat much.