Red SeaFish Pharm ARE21460 Marine Care Program Ammonia Kit for Aquarium, 100 Tests

Very accurate test kit

It is very easy to use and easy to compare the color. I used API test kit also, I use Red Sea for compare in case sometimes it is hard for me to compare the color from the API test kit. The result also match with the API test kit. I also compare the result with the SeaChem Test, it also matches.And the nozzle of the bottle is very easy to do 5 drops, one of the API test kit, the nozzle is very loose, too hard to control.And the cap has thread, no need to worry about split out when shaking it.

Test takes a while, and is difficult to discern between zero and near-zero results.

Takes a bit of time to run the test but by far the easiest to read. Red Sea has made testing easy with their color wheels

accurate, easy to use.

Beware, check the expiration date mine came 4 months old, and results are way of the chart comparing to API, Salifert, Sera, and Tetra.....just be careful what they send you

IMO, the most accurate and reliable test I've used so far (vs. API or salifert)

Good