Hi all,question.I know what caused my HUGE diatom bloom, embarrassed to say not using ro/di and poor circulation. Bought koralia 2 and a 3, I am doing 10-15 gal pwc every week on my 75 gal. Tests are all 0 (amm,trite and trate)ph 8.2 sg 1.023 temp 80.4 phos reads 0 but i know that can be false.Only 3 fish, a foxface, scooter and 6 line. Asst. snails and crabs.Should i blackout?Buy a diatom filter(have no idea on that,just reading)Protein skimmer up and running for 2 weeks, pulling nasty stuff.Been brown for weeks now, not much better since switching water.Just time? Lights are on 9 hrs reg and 11 blues. So ugly..anything i can do??Thanks.