So i left for a few days and when i came back, over half my zoa colony disappeared, only 1 polyp was left, no signs of stress. Tank inhabitants were 4 tiny humpbug damsels, 2 baby crested sabertooth blenny, 1 possible hitchicker pistol shrimp, a baby coral banded, and a hermit crab. Ill send a picture of the zoa now when it opens up again. I took it of the frag plug and glued it today because there was a chance the glue wasn't strong enough and it just gpt ripped of from the flow