Why the hell do people buy clown fish!??? Big problems with mine.

[Nano]

+1

Yes its super frustrating, and terribly sad to lose your critters, but as stated when there is so much going on in such a small tank its bound to cause stress or aggression. IMO a tang should never go in a little tank not even as a juvie. Like said hopefully now you understand why you have to take very careful consideration in stocking. I myself have 4 fish in my 35g
2 ocellaris, 1 bangai,1 six line. I don't know if I would go more or not at this point, as the tank is so peaceful compared to when I had two other dwarf fish in there as well, plus bio load is less.

Good luck with the rest of the fish, I would think about maybe letting a few go and decreasing the stress on the tank mates.