
rahim
Koi Lover
Apr 6, 2000, 1:06 AM
Post #1 of 1
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How to raise GH?
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Hi everyone? Last night I checked my pond water again. And found that my KH is 7 dH and GH at hardly 1 dH. Old Roark suggested that I raised my GH to at least 7dh or better 1.5 times to my KH. He suggested to use limestone. I have no idea where to get one in Malaysia. Is there any alternative? Thanks
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