I tested my tap and found I have at least 2ppm phosphate according to my test kit. Is this phosphate usable by my plants? I thought I read somewhere that KH2PO4 was easier for the plants to use than the form typically found in your tap, but I can't seem to find that article anywhere nor find any confirmation on that subject.
I am hoping it is one more chemical I can stop dosing but, I wanted to be sure first.
I am hoping it is one more chemical I can stop dosing but, I wanted to be sure first.