- Joined
- May 22, 2019
- Messages
- 38
- Reaction score
- 10
I was testing with the API Master Reef (I know not the best but hey got to start somewhere right) and everything seemed to be in check. But I did some more reading and decided it was time to upgrade my testing capabilities. I bought the Hanna ULR Phosphorus checker, Hanna Alk checker, redsea calcium, and magnesium test. All was well until I got to my last test the ULR Phosphorus... well I keep getting a flashing 200. I have tested twice and still 200 flashing. So I thought might as well test with the API again and I get .25ppm color. My only question is shouldn't the ULR phosphorus be good up to around .6ppm phosphate? And my reagent keeps turning the cuvette blue? Is that normal? Any help would be awesome thanks guys