So i think it's time to replace my test kits. They are all pretty old, and some are about empty. Is there one kit i can buy that will test everything i need to test. And what brand is your favorite?
This is a question you will get numerous opinions on and they may very well all be correct! Take a look at this article as it may (or may not) shed some light on the topic. I happen to share the authors opinion...lol.