Well,, the puffer is new (and I think she did have ich-my tang got it) I have been treating with triple dose coral life and it seems to be getting better) The puffer was only a so so eater, but I have recently tried shrimp, and she love it-eating well now.
I did not notice (or know about) the clown disease. I have more reading to do.
And yes, that is coral. My fish seem to be pretty good at leaving it alone, even though they are supposed to be unsafe.
They all get along pretty well, although when the Humuhumu tries to steal the shrimp, the puffer lets him know whos boss.
I will post new pics soon and hopefully puffer will look better (if not I may need help) and ich should be gone.