just curious....which ones are more important? I'd like to know since i only have the four i mentioned above.Bol said:In my opinion, there are three tests that could be called "more important" than pH tests; ammonia, nitrite, and nitrate.
I always thought that the absolute minimum for test kits is pH, Ammonia, NitrIte and NitrAte.
but others could just say the first three from above.