Have you done any testing on parameters? Sometimes on Nanos I find things get out of wack and then we do big water changes which fixes the problem but maybe a little quickly for our inhabitants to be happy with.
I think patience will pay off with this, especially if pods are back. Maybe a small fish would help as those corals tend to like certain nutrients in their environment.
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Mark...
290g Peninsula Display, 425g total volume. Setup Jan 2013.
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