I've got something like that going on with my star polyp and my Kenya tree corals. They perk up periodically then retract again. I did a 25 gallon water change yesterday, and today they seemed better. All water tests are excellent, even before the change, though my calcium is a little low at 360 ppm. I'm wondering if they don't like the lighting or current, and have been moving them to see if they do better.
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I retired and got a fixed income but it's broke.
Ed
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50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
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