natalia_la_loca Posted March 24, 2021 Share Posted March 24, 2021 So this crusty branchy sponge thing showed up in one of my reefbowls maybe a year and a half ago. It just gets longer and longer. Unfortunately it also likes to grow a nice head of hair algae, so I’ve trimmed it back several times, but it always comes back. Anybody know what it is? Quote Link to comment
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