Need help again my 3" flowerhorn is sick with parasite. He is pooping white and it's always long and his stomach is big. He hasn't been eating and he is starting to breath heavy. I treated the tank with lavemisole HCI twice i have taken the carbon out. The first time i did it he really didn't poop, and the 3 days pass and he looked the same, but then he stared pooping more, but today i put more levamisole. Any suggestion what should I do. I heard about clear? But i don't know if I should try it because he is very tiny and I don't know if I can find that tube or something to fit his tiny mouth and i heard about Herbtana. Please help