Blue hornet zoa colony issue

[Animal-Chin]

Question to the zoa experts. I have a good amount of zoas all living together. Sunny D, Rasta, candy apple, fire and ice, etc etc. I have about 30 blue hornets living in the zoa garden, been there for years. 2 weeks ago every single one in the colony closed out of the blue. None have opened since ant if I touch them this brown smoke puffs out of the closed polyps.

Anyone know what could be going on? I peeled half off the rock and did a peroxide dip but that didn’t help. Thoughts?

[Dash]

Not an expert but I’ve had success with Furan dip. Saved my rasta colony a couple of times whereas an Eagle Eye colony (over 50 polyps and fine for over a year) that I decided to leave alone just all melted away. You can google & read various people’s experience with this.

[Animal-Chin]

Any idea why it happens?

[Skimmer Juice]

have you added any corals lately ? Check them out at night see if you can spot anything crawling around in them .

[Animal-Chin]

Always adding coral but no zoas in a long while...

[Dash]

Not sure why it happens. I try to clean detritus out of colonies with a turkey baster but sometimes I forget for a while. Perhaps the build up leads to fungus of some sort. I notice the Furan dip gets a lot of crap off the polyps. It kinda floats off

[Northern Reefer]

I have upwards of 25 different colonies of zoas and every once in awhile a colony just closes up for weeks when all the others are fine. Sometimes they magically open back up and return to normal and other times they just melt away. Its a zoa thing. Been trying to figure that one out for years.