I voted no. I don't add anything to the tank unless there is proof there is a problem. My tank has been up for 1.5 years and I do regular water changes, and I'm eaven quite leary about adding Calcium...
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Recessed 65G tank, 25G sump, Aquac EV-180 skimmer, 2 Iwaki recirc. pumps, 2 x 175 MH (5500K), 2 X 20W Actinics
Planning 120G and a basement sump
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