since the 3rd so 6 days. i cleaned it all off on day 4, pretty much all diatom's. then today i checked it after work and it's getting small patches of gha so i will wait til day 8 or 9 to clean it again, and see what i have then. i don't have a phosphate test (never have) and i don't ever test for nitrates. but i have noticed a difference in how my corals are acting already! it is prob a lot to do with my ph because i never had a night time light cycle, and it's prob startin to work on nitrates and phosphates. plus i started dripping kalk but thats beside the point to this thread