Thought I would revive this thread.
In October my nitrates and phosphates hit zero and I developed dinoflagellates. I ended up with a couple different types. The ones growing on the rocks was taken care of by UV sterilizer, but the dinos in the sand weren't effected by it.
To combat the dinos I kept my nitrates and phosphates high to get other algae to out compete it.
The results have been crazy amounts of gha!
Today I took a few of the rocks out and scrubbed them to remove the gha. Lost a bunch of pods and brittle stars. Even a couple of really big ones. But I got most of the gha off the rocks.
Some before and after shots.
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