fishdude Posted June 2, 2023 Share Posted June 2, 2023 My zoa hasn’t been opening up as much lately. Tested water. All was good except nitrates were a little low. Then this morning I was up early and peaked into the tank and saw this growing out of the middle of my frag. What is it? Thanks! Quote Link to comment Share on other sites More sharing options...
Eatfrenchfries Posted June 2, 2023 Share Posted June 2, 2023 Looks like a tunicate (soft gel feeling) or possible sponge (firm but flexible). *look into pineapple sponges (sycon). Mine have never reached that size but supposedly they can get a few inches. Usually not harmful unless they are fast growing and smothering other livestock. Irritable to human skin as well. Probably best to remove it from the zoa cluster outside of the tank since it is irritating and you don't want to release whatever nutrient it has built up. 1 Quote Link to comment Share on other sites More sharing options...
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