I have the same problem but opposit. My shrooms are doing great and multiplying buy my pulsing xenia is melting. I think it happened after I added a UV sterilizer. Other than that everything is doing great. Any ideas why this may be happening?
I am experiencing ICH right now. I recommend the cheapest cleaner wrasse, cleaner shrimp and UV sterilizer for reef tanks. Copper and UV sterilizer for fish only tank.
and definitely no Kick Ich on on tank with invertebrates weak fish.