My boyfriend and I started out 37gal reef tank with a 5 gal sump and a large refil a filter about 5 months ago. We have a lawnmower blenny, mandarin fish, 7 turbos, 3 asteca snails, banded shrimp, cleaner shrimp, a few sand sifting snails, a pair of maine blizzard clowns, a green bubble tip...