This stuff is nasty. PM mane3215 he had a bad outbreak of this stuff. I had a little bit of it when I bought my tonga pinks and fragged the rock, IIRC Logical advised me to dip the corals, get rid of the fungus where possible and try to isolate the infected rocks as much as possible. I lost 50% of my pinks, probably, but only a couple other small colonies. I haven't attempted to frag my pinks since.
Might want to PM mane3215 and try
bryan@thelogicalreef.com
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