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Great! Thank you for the reply.No.
With BJD you are looking for a mucous mass and quickly rotting polyps.
Hey mate- good question. From the looks of it, it is definitely retracted due to aggravation. Based on that pic alone, I would say not BJD, but keep an eye out. BJD you are typically looking for decay and necrosis (death) and a brown mucous substance that is either covering the coral or flowing out of it. I'll attach a pic of BJD on a similar looking coral from another tank as just an example. Keep an eye on it and be sure to act fast if you see it take a turn as BJD can spread incredibly quickly!
