How Much Crushed Coral To Raise pH?
A starting point might be as small as four tablespoons for a 29-gallon tank, which has been reported to raise pH levels to around 6.8. Less than a tablespoon may suffice for smaller tanks, such as a 5.5-gallon tank. The key is introducing crushed coral in minute quantities, testing the water's pH regularly, and fine-tuning the amount ...
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