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You mean if they cycle from day to night?Looks like it. Do they spin around?

Yeah I dont have a uv... good thing for me it can be a plan BOstreopsis dinos.
Possibly the easiest to treat as they are waterborne at night. A powerful UV sterilizer could wipe them out in a couple of days.

Try giving this a read https://aquariumstoredepot.com/blogs/news/how-to-get-rid-of-dinoflagellates
It has plenty of information.
I figure I should stop the vodka dosing.
Cycling a tank with corals and fish is tricky.
My steps:
1 manual removal
2 cut vodka
3 add copepod (I have a big culture ready for that)
Probably be adding some phyto as my culture still has some phosphate in it and will help my algaes to thrive.
In addition to the UV, increase your NO3 and PO4 to 15 and .1 at least.
Don't dose aminos.
I agree.I'm questioning myself though...
Right now it's not an outbreak it's at most a couple strings of it (obviously some you cant see)
But at this point having a UV seems like an unwize choice...
As you will also kill some of the dinos competition.
But again thats just a guess
Good thing you told me abput amino , I didnt make the link there.
Even though I didnt started back my doser since I installed this aquarium, I thought that it could help fight the eutrophic water syndrom that dinos seem to thrive on.
I too was in your shoes. I have loads of organisms in my tank from sponges to coralline to foraminiferans. I had high PO4 and NO3 but dinos were there and a nuisance. When people say get your nutrients up, it’s in hopes that something else takes over. It’s not guaranteed. My NO3 has always hovered just under 50. I agree with @ScottB about aminos. They seem to be the cue for dinos to jump in. Also, when I increased my lighting, they came back. I’ve noticed that lowering my lighting was extremely helpful.I must say I have a very very complexe ecosystem with many varietys of algaes sponges and etc.
I hope that will be of some help here.
Right now dinos only show themselves
in the upper part of the aquarium on a fishline holding my cleaning magnet and the aquarium itself is very high.

