del_rn
New Member
I have a 70 gallon tank with 120lbs of live rock this tank is 4 years old. I haven't had any problem til recently I started losing fish. At first I thought it was the age of the fish when the first ones have died. I recently bought 2 peppermint shrimp and 2 brittle stars and the died within a couple of hours of being acclimated to the tank. I haven't been able to keep snails either. I have 3 fish in there now that have been there for a long time and there are some snails and hermit crabs that have also been in there for a long time. I cannot however introduce anything new. Please help me figure this out. Salinity is 1.026, Ph is 8.4, Nitrites are 0, Nitrates are 5, Ammonia is 0. I don't understand what is going on. I have a fair amount of algae on the back glass and power heads, could that be the problem?
