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Re: [APD] BGA and Floating Plants

Sean, your nitrate level is almost certainly the problem. Every time I've
suffered a BGA infestation has been when my nitrate levels were too low. If
they're unmeasurable in your tank, you have a definite problem with

In my personal experience, a nitrate level less than 2 ppm is asking for
trouble. I generally shoot for 5-10 ppm NO3.

For me a 4-day blackout worked well to kill the BGA. Then regular dosing of
KNO3 kept it away.

- Jim Seidman

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