Well today it was as bad as it's been. I got married in my house today so I wasn't allowed to put garbage bags over the tank until everyone left, but I'm starting a blackout period now. Thankfully it's really easy, as the tank is fully enclosed in a cabinet, so I just need to cover the two exposed panes of glass.
I'm also going to try dosing hydrogen peroxide at the same time, and keep the tank blacked out for 4 full days. My dinos aren't nearly as bad as some of the images I've seen on line, but today was the first day I really saw them starting to coat corals. I'm leaving town for 2 weeks on Friday, so I'm hoping that if this doesn't work, it at least slows it down enough so that it doesn't overwhelm my tank when I'm not here to do anything about it. If there's still dinos when I get home I'll try a longer blackout period, and will start looking in to making pH adjustments, as that's the other thing online that people have said works.
Question for people who've done black-outs - did you have to adjust the rate at which you dose calcium and alk? I would think that the absorption rate would bottom out with the lights off.
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