I use reef crystal salt. My calcium is 450 Salinity 35ppt alkalinity 7 nitrates 25 ph 8.2 and magnesium 1400. This is a frag tank and i dose 25 mill a day alkalinity.
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I'm getting ready to set up a 120 gallon tank and was wondering how muck Pukani I might need? I don't want wall more open space with arches then I was going to use shelf rock for overhangs. I was thinking 60lb pukani and 10lb shelf.