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Does anyone know the availability or utilization of Ca in water where there is high CaCO3 (calcium carbonate) from limestone rich waters? I seem to recall reading sometime ago where there was some mention of the fact that this form of Ca was difficult for plants to utilize. Anyone have any good info on this?
Having hard water (kh 9-10) from a limestone aquifer, it surprises me that my snails can develop holes in their shell. Guppies and SAE's won't cause this. I have noticed recently that some of my nerites have cracks and holes in their shells. Frankly, that's the last thing I would have expected. It makes me wonder also how this might affect plant utilization.
Having hard water (kh 9-10) from a limestone aquifer, it surprises me that my snails can develop holes in their shell. Guppies and SAE's won't cause this. I have noticed recently that some of my nerites have cracks and holes in their shells. Frankly, that's the last thing I would have expected. It makes me wonder also how this might affect plant utilization.