I recently rehomed my aggressive gourami and put the black moor back in the community after treating him with Melafix. We have been gone for a day, I fed them the night before we left and we just got home. He has been swimming around just spitting stuff out, but it isn't after he eats anything. Did he gorge or is there something wrong? I've never seen him do this before. I'm probably worrying about nothing, but he is my favorite fish! Thanks!!