Review on 🐠 JNW Direct Aquarium Test Strips for Fish Tank 6 in 1: Accurate Water Testing for Freshwater and Saltwater Aquariums - 50 Count by Katrina Scott

I have been using these test strips for a few months now. I assume they are correct - I have nothing to compare them to. However, I would like them to have ammonia level boxes. Very often I read that the ammonia level in aquariums is just as important to control as the nitrite level. Luckily my nitrites were at an acceptable level. However, the same applies to nitrates. Anyway, I use a rough method to determine if the water in the aquarium is filled with ammonia - I smell it. I change the angelfish water fairly often so it doesn't smell like the goldfish tank I had before.