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Re: [APD] Are all GH tests red/green?
Jerry Baker wrote:
> Being that I am red/green colorblind, Tetra's GH test kit is useless to
> me. Are there any GH test kits that do not change from red to green or
> vice versa? The KH kits works for me just fine, but the GH might as well
> change from clear to clear.
What about using a red plastic in front of the tube ?
Red shall keep the same darkness but green shall become darker !?
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