Sunnyspots
Fishaholic
Hi all. I'm cycling my tank but have a problem in that my dipstick test will measure 3 ppm but they are known not to be very accurate, however my test drops measure either 2 or 4 ppm rather than 3. In order to achieve the 3 ppm test could anyone recommend a testing kit, preferably one available in the UK? Alternatively, would it really be a problem to work with 2 or 4 ppm instead?