I trust Rea Sea products - testing is a must if you wan to keep a reef system especially a small system like mine 45gal - things can go bad fast, I test twice a month , I don't wait till I see something is wrong. That being said this kit - is easy to use , has tests for NH3/NH4 | NO3 | NO2 | pH | KH - the main drivers for your reef tank - it does not test for Calcium nor Phosphates PO4 - it would be helpful if Red Sea added those to the kit. Back to the kit its self - I think you can do about 50 tests with the kit - it will last you about a year. And be advised the testing chemicals have expiration dates. Three test vials come with the kit - and these are color tests - you compare the reaction color in the vials to a card that corresponds to the value your testing for so if your color blind don't buy this kit, have good lighting and a timer on hand as well ( have to wait for the reaction to occur in the vial of tank water being tested) Have used this kit for years and its pretty spot on.Read full review
Verified purchase: Yes | Condition: New
This brand makes simply one of the best and easy to use
Verified purchase: Yes | Condition: New
It’s bit more complicated then the API test kid I was using. But great product
Verified purchase: Yes | Condition: New
Compare to API and hands down Red Sea is by far more accurate
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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