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limestone holey rock

2254 Views 4 Replies 4 Participants Last post by  offthedeepend
I just purchased this recently - does it work like coral in that it increase pH, Increases hardness of the water??
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Yes it will buffer (raise) PH.
in hard alkaline water it will dissolve slower that it does in soft acidic water. but it will buffer to a degree
it will SLOWLY buff pH.
thanks ! I don't know what the last 3 parameters do or if I need to check them but I do check pH, KH and the usual nitrite/nitrates and ammonia
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