Radion vs halide help

[Proteus]

I think your right. I added prime and H2O2. To the water when I filled tank. And added carbon yesterday to rid any contaminates. No invert or fish were affected and only 2 corals out of 20.

I hope to see stable conditions I guess I may see a mini cycle. Last time I upgraded I never had any issues. But maybe I never paid enough attn as I had mostly Lps then