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The Phosguard package says to use 1/3c per 50 gallons, changing it every 4 days. It claims more won't work better/faster. Can anyone explain why that is?
Ideally I'd like to use 4 times as much and change it when I do a water change every two weeks.
Ideally I'd like to use 4 times as much and change it when I do a water change every two weeks.