this is my first post great site i have 7 tanks my 75 gallon reef is running on a refugium i have purpal coraline all over my refugium but none in my main tank i have alot of red macro algee in there also pinks orange some green im using pc about 260 watts calcium is 460 nitrate is a little high about 20-30 using ro only about two months is it just a waiting game or is there anything i can do i wont use purpalup:banghead: