So I set up my tank about two months ago. Current parameters PH 8 ammo 0 nitrite 0 nitrates 0 KH 9 calcium 440 mag 1440 phos 0. I'm running my skimmer 24/7, phosban and carbon. I feed every other day a quarter cube of mini mysis and the occasional small nori for the tang. My stock WAS yellow tang, two firefish, two clowns and a royal Dottyback. One firefish jumped in the overflow and died, it happens. The other started getting beat up by the Dottyback. I look in the tank and the remaining Dottyback and firefish have mangled fins, in guessing from fighting. They were eating fine yesterday. Today I come in to find a dead firefish on the sandbed and the head and skeleton of the Dottyback. Is this from fighting and the stress brought on from it or should I be looking for a disease???? The other fish seem fine and are active and eating today. Opinions please!
really though I dont know if all are or not


