My 1 and a half year old Flowerhorn is always staying in the corner of the tank and has white stringy poop. His colour is the same just slightly pale. He only comes up to eat and goes right falls back down. His tummy is a little bit big so I’m guessing it’s why he falls down? I tried soaking some of his pellets in garlic for a few minutes. He isn’t as active anymore as he used to be, please help. What should I do?

