Red Sea vs hannah
So i invested in a hannah url phosphate kit. I was using Red Sea phosphate pro.
To my surprise my Hannah reads 0.23ppm while my Red Sea reads 0.02ppm.
I have some problems regarding nitrate (wont go down from 25ppm) and phosphate (didnt go above 0.01 for months even with dosing) Which one should i believe? And how to correct the nitrate problem?
So i invested in a hannah url phosphate kit. I was using Red Sea phosphate pro.
To my surprise my Hannah reads 0.23ppm while my Red Sea reads 0.02ppm.
I have some problems regarding nitrate (wont go down from 25ppm) and phosphate (didnt go above 0.01 for months even with dosing) Which one should i believe? And how to correct the nitrate problem?