Hello All
I am wondering if you can help me with my issue, I have some KH2PO4 ordered from one of dry salts online shops. I have dissolved 1.63g of KH2PO4 in 500ml of water to dose 40ml of this solution to my 70L tank. I wanted to see how my Nutrafin PO4 test will react when I use it straight on the solution. I have poured 5ml of my fertilizer to the probe and added required drops of tester, to my surprise the test didn't turn to blue color at all which means that PO4 is complete zero in my DIY fert. Now the question is if there is something wrong with my test or with salt ? When I test my tap water the test shows dark blue. Could you please try to test your DIY ferts and see if your test will show anything ? Also when I test my aquarium water the test shows between 1-2 ppm.
Thanks.
I am wondering if you can help me with my issue, I have some KH2PO4 ordered from one of dry salts online shops. I have dissolved 1.63g of KH2PO4 in 500ml of water to dose 40ml of this solution to my 70L tank. I wanted to see how my Nutrafin PO4 test will react when I use it straight on the solution. I have poured 5ml of my fertilizer to the probe and added required drops of tester, to my surprise the test didn't turn to blue color at all which means that PO4 is complete zero in my DIY fert. Now the question is if there is something wrong with my test or with salt ? When I test my tap water the test shows dark blue. Could you please try to test your DIY ferts and see if your test will show anything ? Also when I test my aquarium water the test shows between 1-2 ppm.
Thanks.