Please help me add PO4 to mt tank.
I have been using the PPS method of dosing ferts for a month or so. I have been testing PO4 and am continually coming up zero on my API test. I only have 8 clippings planted in a 45g so not sure what the problem is but I've decided to dose my KH2PO4 in its own solution in addition to my regular regime. I just don't know how much to measure out and mix nor do I know how much RO to use.
Last edited by JohnsTank; 11-15-2016 at 07:49 PM.