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Re: New here, and need some advice.

Subject: Re: New here, and need some advice.
by Fishlady on 18/7/2020 18:03:08

The API tests are pretty reliable. I suspect your nitrate has not yet risen much at all and that you have nitrate in your tap water supply which is what you're seeing in the tank. Most of the UK has some nitrate in tap water, many have quite a lot (mine is at 40ppm). The nitrate test is the least reliable of the set and it is very important to shake/bang the second bottle very vigorously before use as the constituents can settle out of solution and give a false result.