Need some suggestions on how to bring up my Phosphate and Nitrate levels.

[rdavidw]

This morning when I got the 0.25 high phosphate read I tested right again and got the same number. When I do all of my water test I fill a small cup with tank water and pull all of my test from there. I had pulled my 2nd test from the same sample.

I just tested again and got 0.00. I did a 2nd test (4th today) from a new sample of tank water and got 0.10. My test kit reagents are fairly new. Strange.

 

[Randy Holmes-Farley]

This morning when I got the 0.25 high phosphate read I tested right again and got the same number. When I do all of my water test I fill a small cup with tank water and pull all of my test from there. I had pulled my 2nd test from the same sample.

I just tested again and got 0.00. I did a 2nd test (4th today) from a new sample of tank water and got 0.10. My test kit reagents are fairly new. Strange.

Not sure what is happening, but test error is a much bigger issue than many assume.

In any case, with both n and p low now, feeding more is the easiest option, but dosing is also fine.