I came back from work this evening and some of my dry rock has orange stuff growing all over them. It's not real fuzzy or anything... but it's starting to look pretty gross in there. It's even on my crushed coral in certain spots. So I'm guessing these are diatoms? My nitrates have been 160+ ppm. Since these diatoms are in there now, are there any steps I need to do? Should I continue with my water changes? Change filter media more frequently? Tank is a month in it's cycle. Does this mean I need to get a CUC to clean up the diatoms?