My test kit doesnt masure amoniai did a water change few hours before and added de clorinator/stress coat hope this doesnt effect the test kit but here the params.
Nitrate: 15/20ppm
Nitrite:0
Gh:7
Kh:around 12
Ph: close to 7
What kind of test dont show ammonia? Keep the tank highly oxygenated and hope for the best right now.