Total Noob Question: Phosphate

[Cal_stir]

Originally Posted by Enigma

Thanks

I was hoping it would be more accurate than that, but at least it will tell me if my media needs changed or not.

You have to find what works and just stick to it, I have a 90gal heavy fed and 500ml BRS HC GFO changed every 3 weeks works for me, I regenerate my GFO to save money.