Done a lot of research on nitrate test kits. I currently use a API nitrate test kit. Simple question: what is the best one available and what do you use??
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If you don’t use hobby kits then what do you use?Nitrates kits on hobby level are not accurate.
They use reduction method by breaking nitrates to nitrites and then calculating. This reduction doesnt happen so effectively and efficiently in such lower lever hobby grade kits.
Api or other kits showing 60 or 80 ppm nitrates probably are about 20 to 40 in reality.
I wouldn't focus too much on hobby nitrate kits. IMO