presston Posted July 20, 2003 Share Posted July 20, 2003 Hi Everyone, could you please tell me what this yellow growth is growing on my star polyp colony? Thanks!!!!!! Link to comment
chufa Posted July 20, 2003 Share Posted July 20, 2003 That is an encrusting sponge. Common among GSP rocks. I got one too. The hole in the center is the siphon. Link to comment
Crakeur Posted July 21, 2003 Share Posted July 21, 2003 nice color. I have some orange encrusting mixed around my tank. a suggestion, make sure it has plenty of water flow on it so that you don't get a cyano buildup. Sponges seem to be cyano magnets Link to comment
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