Thanks Karin, John, and Lorraine for the input.
Just reporting in my findings so far... The red blasto coral that is probably too far gone still looks terrible. I gave it a Lugol's dip, used the 8 drops / liter that Bill recommended in his thread. I also moved it to the big tank for the benefit of the UV sterilizer. I will dip a few more times and see if there is any rebounding, but it looks like a goner.
The other big fat healthy gorgeous LPS (frogspawn) that has a spot of ??? where something awful had fallen on it and caused immediate damage and recession is too big and attached to a bottom base rock in my reef so it cannot be removed for a dip. So I tried something crazy and turned off my pumps and dropped about three drops of Lugol's in the water just above the colony. The iodine fell right on the coral full strength, which didn't seem ideal, so I swirled the water with my hand to dillute it a bit. Then I left the pumps off for about five minutes before I turned them back on. Today there looks to be less tissue damage and I cannot see as much skeleton as I could yesterday, so maybe better extension. I'll keep you posted.



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