So... I have been testing with my Salifert kit for Nitrates. Lowest I can seem to get it is 25ppm. So, just for pure joy, I tested it with an API kit I had. tested between 5 and zero ppm. HUH?? So, which is correct? I kinda want to lean API because:
1. I have done 2 50 gallon water changes in two weeks
2. It tested at 25 before and after each water change now.
3. Phosphates are .03 per my Hannah.
4. water looks invisible.
Thoughts???
I want to lean to the Salifert because they are supposedly better test kits.
1. I have done 2 50 gallon water changes in two weeks
2. It tested at 25 before and after each water change now.
3. Phosphates are .03 per my Hannah.
4. water looks invisible.
Thoughts???
I want to lean to the Salifert because they are supposedly better test kits.