I had a candy cane die on me…. removed it did water changes/carbon... the Scuba Stevo below it got really sick…. showing white skeleton and polyps not coming out.

I did a dilute iodine dip, moved it to an area of lower light/flow

I see a few green heads barely peeking out, but other heads seem to be shedding brownish stuff.

Should I try to cut off any really bad heads? I've never tried to frag anything before...

Thoughts???

Thanks