| Surely some very challengable points there.
1) with proper maintenance, regular water changes, many ponds having constant flow through, stocks at lowest level of the year and the fact oyster shells possibly used to buffer KH why would it be at a lower level than in November?
2) one mudpond, with no koi but loads of fresh mountain water had a kh of 3.5. What does that prove?
3) I have an issue, having had more than one trip to Japan, with comments such as 'a breeder says' - given the language differences such comments are easily misinterpreted. Maybe they couldn't maintain KH to support filter due to it's newness and stocking levels.
Mark
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Mark Gardner
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