I've gotten this nasty algae outbreak and I am unsure of why, I am considering a couple of days of lights out. Phosphates are at .02 per Hanna and nitrates are undetectable per Salifert, flow shouldn't be an issue I have dual MP40's, I am running ecoBAK and an ATS. My halides are four months old, all of my acros (besides newly acquired frags) have great color. Any thoughts?


