Why aren't my fish eating!!!!!!!?

Question

it doesnt have amonia and i try feeding them at night.

Answer 1

Check the water quality for ammonia, nitrite and nitrate. Ammonia always 0 ppm, nitrite always 0 ppm and nitrite no more than 25 ppm. Ammonia will kill your fish...

Answer 2

dont give them goldfish flakes. i know the cory cats and red finned shark are bottom eaters so i would give the shark a sinking pellet food during the day and the cory cats 2 at night because they are nocturnal.i dont know about the dragon goby though.