I have a 55gal with a CPR Backpak 2 and a Fluval 404. 30lbs of live rock and a good 3inch bed. I started the tank on 6/22 on 6/24 I added 2 damsels. I know I should have used the shrimp. My water quality levals are as follows. PH 8.2, Ammonia .50ppm, Nitrate10ppm and Nitrite .50ppm. It has been...