Hi,
Got a friend who has this problem. New fishes die on the 7th day after introducing into the tank. Example of fishes are flame angel, sailfin tang, bt and pbt. Only survivors are chomises, gobies and shrimps. Has octo and hammer doing well in the tank. Parameters are NH4 - 0, NH2 - 0, NH3 - 10. Water tested with salifert test kits. Using 150w mh and chiller keeps water at ard 27degrees. anyone has any idea why this is so?
Thanx.