Our 55 gal. FO tank is 1 1/2 yrs. old. We have the wet/dry filter - nitrate is 40, nitrite 0, Ammonia 0, PH is 8.2, temp 79, Phosphate is off the chart!
Over the last few months we had unexplained fish death with new fish. LFS said this is common, as water conditions degrade, old fish are...