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What are these black markings?
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2018-06-07, 1:33pm
echeveria
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Join Date: Aug 31, 2006
Location: Knoxville, TN
Posts: 2,215
I think Effetre opalinos are notorious for that, being very sensitive to the gas. I am not sure how to avoid it. I was advised to learn to love it if I was going to use many opalinos.
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