Hello, I got my Ulr Hanna checker yesterday . I tested the 75 & got a zero !
Then I tested the 18o & came up with 0.006 (using the conversion chart) .
So earlier today I tested the 75 again & got another zero!
Now both these tanks have been always been nutrient deficient But I never expected a zero read from a url checker! Any way I'm slowly dosing Seachem Phos to brings these numbers up
Just wondering how unlikely to have real close to zeros ! I do of course have algae so there is something in there !
Then I tested the 18o & came up with 0.006 (using the conversion chart) .
So earlier today I tested the 75 again & got another zero!
Now both these tanks have been always been nutrient deficient But I never expected a zero read from a url checker! Any way I'm slowly dosing Seachem Phos to brings these numbers up
Just wondering how unlikely to have real close to zeros ! I do of course have algae so there is something in there !