hmmm you got aiptasia.. sorry
pepperment shrimps can eat it throw a couple in there fast or
every trace of it that is not removed will grow more
nasty little buggers
or you can try to inject them with kalkwasser right into the mouth
or a copperband butterfly but say goodbye to all featherdusters and some other stuff too :sleepy:
but your tank looks great :hilarious
:hilarious