Rowaphos

[ccradr]

How often should you change it running in a fuidized reactor on a 265..light bioload mixed reef?

[snorvich]

Test your phosphate using a photometer and when it reaches 0.04 it is time to change. Just my opinion.

[Nuuze]

I been running mine about a month now and phos is still 0.03 on the photometer. I actually had to reduce the dosage by half from the instructions. The first 3-4 days dropped too fast from 0.19 to 0.03 on my 200G.