RemoGaggi Posted July 9, 2019 Share Posted July 9, 2019 This looks like a long thin red antenna. I've seen a few of these in my tank from time to time, usually in the rocks near a coral. Right now, there's one attached to the front glass. Is this some kind of living creature or just some kind of algae? Friend, foe, or algae? Thanks. Quote Link to comment
Clown79 Posted July 9, 2019 Share Posted July 9, 2019 What's your p04 and n03 levels? It's hard to see without a close up shot. Could be cyano or possibly dino's, or another algae. Quote Link to comment
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