Ok, here we go again. New fish, new problem. Hopefully it is recognized, I believe I have read about it already. My BD acts hungry, I feed, he inhales it, then spits it right back out. I have tried BW, Brine Shrimp, BH, flake. He is getting really skinny and might be sick. Help please, again.
Could be many things from hex/spiro, other internal flagellates, bacterial and nematodes. This is a common symptom. More info would help, eye colour and condition (bright dull clouded speckled) gill colour, any necrotic holes around the face or lateral line, fish behaviour etc.
Paul
Comfortably numb.