This gives me some hope. It’s so frustrating, my last two systems I set up ignorantly and didn’t have a fraction of the problems I’ve had with this one. The biggest difference honestly is I started both the of the last systems with store bought live rock. I had ugly phases but nothing to this extent.I've done blackouts for ostreopsis but not a big fan as they just come back and it stresses out the corals that are trying to survive. Just crank up the UV flow and eventually you'll win out. Might take a few months. I had mine beat for several weeks then dialed my flow down - big mistake. It was months before I touched flow again but never had dinos again.I nearly had it beat but I think I’m having problems with lyngbya Cyanobacteria. I’m having a hard time keeping nutrients up and today I didn’t test but corals look ticked and ostreopsis is back off to the races.
I’m thinking a 3 day blackout is my first step but I’m afraid of losing all my live stock again. I nearly hate this system, I’ve never struggled like this. Never doing barebottom and dry dead rock again.
Once I had my breakout under control I had cyano and then a massive GHA breakout. Dinos really mess with balance of your tank. Just keep at it. I never added nitrate/phosphates as it mine never bottomed out, but it's not a bad idea.
I had a 2" sand bed and still had all these issues so...who knows.
And yeah, I feed your pain. Closest I came to throwing in the towel was during this period.
I have the flow lower on my pump for the uv that is directly in the display but I can turn it up. I assumed since it knocked the Dino’s back so fast and aggressively that I was over it completely. I honestly thought I would be taking it offline.
The lyngbya isn’t super out of control, I’m wondering if I keep at manual removal that I will eventually end up with balance. I’m a little concerned that it’s irritating one coral in particular but there’s no way to be sure.
Yesterday I noticed a large single polyp of dragon soul goniastrea that was previously doing REALLY good was shrunken up. It’s a super beautiful piece and was incredibly puffy. I might try changing my carbon sooner. Fortunately it’s still sending all the tentacles.
I have a BIG box coming from tidal gardens soon, I really want to receive it

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another reason why I’m trying a diamond goby for the sand. The nassarius are the wrasses favorite to mess with. Luckily they leave my two conchs alone.