Hey there, This guy came on a mushroom disk I received about 5 months ago (he's chased them all off) Does anyone know what kind it is and if it's ok to keep in the tank or not? It's been kind of fun watching it grow from not even visible. I'd say it's a little over 3" wide now.
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It's a little retracted and aggravated right now because I was messing with it trying to get it off a rock to relocate it again.
They do however seem to love one of my larger zoa colonies :/

