Favorite Phosphate Test Kit

I'm using the API kit. It doesn't test low enough for me plus the color I get really doesn't match any of the colors precisely. I want to upgrade to a more advanced test that measures low range accurately. I've read a lot of reviews and neither of the tests, including Salifert's, seem to be a slam dunk. What do you 3reefers recommend and why?

 

I went through the same thing as you.. There is no good test kit that measures low enough. Everyone told me to get a Hanna Photometer. Even that $200 piece of equipment isn't 100% accurate. Sad isn't it?

So now I just run a lot of GFO and not worry about my phosphates since my SPS are doing great (beautiful color). I haven't seen algea in years. I haven't tested in a long time..

I mostly pay attention to the amount of light brown algea that builds up on my glass. If it takes less then a week to build up to become noticable, I replace my GFO..

Not really scientific or exact, but it works.. lol

 

Oh and I ususally replace my GFO every 2-4 weeks, only to be safe..

 

That's real quick, I usually do it every 2 months or so.

As for a test kit, I had used API, but now I just bought a Salifert for the same reason you were stating. I used it and was very happy. It was easy and fast, and more sensitive.

 

Salifert for me also, simply as its the best of what is conveniently available out here

Steve