Tang Daddy,
I have not changed bulbs since May but did add 2 Glo t5's to the display a month ago. I figure it is the addition of Mg that may have caused the change, but the tank is still looking good so I will go with the flourecent green growth tips being of no concern until I see a reason to think differently.
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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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