Originally Posted by Sniperhank
Hanna checkers are the accurate test kits, not API.
You're at 1 lbs per gallon of rock in the system? Since I haven't used this test kit I'm not sure if it has the ability to detect ammonia as it is being consumed as part of the nitrate cycle and it might not be a problem at all.
I have 65lb of rock plus 65lbs of live sand. All my other parameters look good.
Ammonia. .0ppm API and 2.0ppm Hanna