I have a 75 gal. with 10 lbs. liverock, 1 coral banded shrimp, a yellow tang, a coral beauty, 1 damselfish, 1 anemone. It has been setup 6 months; water tests are 8.2 ph 0 nitrites or ammonia, temp is 78. On Dec. 23 I added 2 turbo snails 1 gold band maroon clown( tank raised) and 5 lbs. lace...