We recently went though a tank move from a 37g to a 90g. We also moved to a new apartment. Since the stand wasn't ready, all livestock were stored in a rubbermaid tub for a week.. Mostly all the coral did fine, and all livestock is still alive. The levels were fine, with frequent wc's. Temp: 79 (thermometer) pH: not tested SG: 1.026 (hydrometer) NH3: 0 (API) NO2: 0 (API) NO3: 0 (API) After letting the new tank run for a week, we tested the levels: Temp: 77.7 (temp probe) pH: 7.9 (pH probe) SG: 1.025 (hydrometer) NH3: 0 (API) NO2: 0 (API) NO3: 0 (API) PO4: 0.01 (Hanna Checker) The fish we have aren't really prone to ich: Melanurus wrasse Clown fish Yellow watchman The YWG has some white spots on him.. What is this?