Phosphate Reduction

[hunggi74]

The ULR Hanna phosphorus checker turns off after 10 seconds of displaying the results as well. There's a video on YouTube by Marine Depot that guides you through the process. I find if the vial is not cleaned well you will get results that swing dramatically. If you get this test rinse the glass vial well with vinegar water and a brush and you will get a more consistent reading.
I would use Foz Down if your PO4 level is indeed at 2ppm. Much more economical option than reactors and media.
Lastly, don't use API test kits. They're not very reliable/accurate.
Good luck.