So I have a 45 gallon tank with 2 powerheads that are sync'd at a moderate speed, and 2 T5 lights (on for 8 hours). I have 2 clownfish, 1 coral beauty angelfish, 1 clown goby, 15 red legged hermit crabs, 2 emerald hermit crabs and 3 large snails. I do not have any coral but want to get some in...