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Re: [APD] Potassium Test Kit at Aquarium Landscapes

I have read that it works by having you compare your water
sample with two provided comparison vials, so you can see
if your K level is 1 pmm or 2 ppm or higher.

--- "Richard J. Sexton" <richard at aquaria_net> wrote:

> These guys are vets. If they said they made a kit that
> works I'd
> cetainly be willing to give it a try. 

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