Hey everyone this is my first post ever on any forum and just wanted to show the tank I've setup and ask some questions. My tank is 11 weeks so it's still very young and I know you go through a diatoms faze in the beginning but how bad does it actually get before it goes away? It's literally covering all my sand in this thick brown (and some is turning purple which I'm guessing is cyano?) and also all my rocks but it's more hairy on the rocks. I've tested the water multiple times for weeks to see what changes and it actually doesn't change much at all. Ammonia and nitrite are always 0 and nitrate is close to 0, phosphates 0 (API TEST KIT) and my ph swings between 8.0 and 8.4 (reefkeeper ph probe which was calibrated about a month ago) I run carbon through a reactor but no gfo. I have some gfo if I should start running it but I thought you should only run that if you get phosphate issues. Am I wrong on that? I have green star polyps, frogspawn, hammer coral, torch coral and a couple different zoanthids. The fish I have are a pair of clowns, purple firefish and six line wrasse and my CUC is 2 hermits, 3 nasarrius and astrea snails. I feed twice a day with about a 1/3 cube of frozen food and everything seems to get eaten up. Everything looks to be doing fine but I'm worried this brown stuff is going to start growing over my corals. Should I just leave it and let it run it's course without it harming anything or should I do something? I'm getting tired of looking at it, it's been 5 weeks and it's so ugly... If there is anything I missed to say which there probably is just let me know. Any help will be appreciated. Thanks!