with your salinity you don't want it to change so much so rapidly. You mentioned that it was at 1.024 when you checked the water parmeters, then went up to 1.027 that night, and is now down to 1.022 after topoff. These swings will cause alot undue stress on your tank inhabitants.
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RSM 250. Clownfish, Fox face, Blue tang, Yellow tang, Kole tang, Clown tang, Coral beauty angel, French Angel, splendid dottyback. CUC, softies, lps, sps.
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