I just got my new betta. The first day he was flaring almost constantly. Today he just slowed down alot and sit at the bottom or top. I tested for ammonia and ph . PH was 7.6 and ammonia was o.5 I did a 100% WAter change and ammonia tested normal again. He also has not eaten at all since I got him. I have no Idea what could have happened. My brother also noticed a small lump on his side. He has also slowed breathing. The water temp is 81. I feed him hikiaro betta pellets and frezze dried blood worms. His tank is three gallons with one silk plant and a small clump of hogwart. He is the only one in his tank. That is about it.