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Things To Do During Refill
pH Test? 3 drops in 5ml. (ideal range 7.1-7.6)
NB. The black gravel in there is constant buffer so should be no need to use any coral sand. If you get a below 7 reading consult Bruce first. As it is white, coral sand or she'll grit should not go in directly to the tank
pH
Hanshuo Tan
test uploading - duplicate
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