Chris, what has the Gyp rock done to your water hardness? I would expect to see an increase. I would like to raise my calcium in my water. don't need it for water clarity. I can use a smaller sized gyp and blend it in a water tank and then spread it or shoot it out into the pond water, but the gyp rock seams it might be easier but slower benefits by just adding some around the shore line. Thoughts from your experience. Thanks

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Tracy