Thanks for the info... For the cyanobacteria patch, it seems like either lighting or nutrients are the main cause. I have an ordinary T12 full spectrum bulb right now and that's only on between 6pm to midnight. I don't have anything powerful, yet. I was going to wait a couple more months before I started delving into corals.
As for nutrients, My API tests show decent nitrate levels (for FOWLR
), about 10-20ppm. I was working on getting this lower, but I'm having a hard time. I do about 10 gallons every 2 weeks (on my 36g DT with 10G sump/refug). I have chaeto that isn't really growing or dying; it's the same size since I got it 3 months ago.
I may be overfeeding. I have 2 clowns, 2 damsels and 1 watchman goby; plus assorted crabs, snails and 1 snapper shrimp. I alternate between 1/2 a tab of the Hikaru frozen brine and pellets (about 40 pellets). I worry that my inverts, particularily the snapper shrimp, isn't getting enough food.
As for the Aiptasia (you can click the picture to get a closer view), I'm really not sure where that came from. I haven't had any new additions for over 2 months. Hopefully, if it is, I can get rid of it quickly.