Hey guys i am new to the Forums. I have a 75 gallon saltwater tank, seclone 100 protein skimmer, 2 powerheads, wet/dry filter, coralife lights: 2x10K 2xActinic and 4 Moon LED's. 50lbs live sand, 100lbs live rock, 3 damsels, 1 bluebanded goby, 3 sally lightfoot crabs and 1 pumping xenia. the tank has been running for 2 months, and i leave the lights on for about 12 hours a day. since adding the lights about a week ago, i started getting brown algae that looks like a Diatom Bloom. If this is so, how do i get rid of it? It is kinda powdery.