Hi all. Does this look like a pair? Added 4. All fine for 24 hours and all eating. Then 2 died even though water test show 0 ammonia 0 nitrite etc so water good. Added another 4 and physically noticed these 2 going for the other bangaiis again. Killing 2 this morning and battered the other 2. Spend most of their time side by side and flicking at each other. Hard to vent so looking at the mouth shapes and to me look different



