My 55g has been up and well for about 4 or 5 months now. I have 2 false perc clowns, 4 chromis, 1 cleaner shrimp, 1 diamond watchman goby and 2 emerald grabs and 6 turbo snails. All the fish BUT the regal tang has been in the tank for atleast a month to a month and a half with no problems of...