Hello all. I am so confused. My fish keep dying but my inverts, and corals are fine. Current starts as of 3-12-15: nitrite 0.25, nitrate at 0.10( followed by a water change) ammonia at 0 ph 8.2, salinity 1.027. I have a 30gph canister filter for my carbon, and a skilter 400 with a built in...