How new is the tank? It's possible the tank wasn't ready for so many fish do fasts. It has to be cycled first then filled with a few fish such as chromis to help further cyclingAmmonia, ph, nitrites are good. Nitrates are a little high so we have been doing the water changes to help lower. His spots are different than normal the normal color fades. Very lethargic and won't eat. The tank is fairly new so we were told we didn't need a skimmer yet but now seeing we may have been misinformed.



