Parameter testing question
I am colorblind which is making reading the parameter tests (the test tube kind or dip strips) very difficult (probably impossible since I really have no idea if the color I'm seeing is in fact the color it is lol). I am wondering if there are any parameter tests that use numeric value rather than color value? I asked at a LFS and he just looked at me like I was crazy or some freak of nature and had no information. The ones that are giving me the most problems are the Ph, Ammonia, and Nitrate tests.
Thanks
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