graky Posted March 3, 2019 Share Posted March 3, 2019 Hi all Saw this round thing attached to my zoa.. today, it detached itself from the zoa and attached to the rock. Any idea what it is? Thanks in advance! Sent from Singapore Reef Club mobile app Quote Link to comment Share on other sites More sharing options...
SRC Member Kingkk Posted March 4, 2019 SRC Member Share Posted March 4, 2019 That looks like sponge .. good for ur tank no need to worry.Closer pic will help to confirm betterSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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