KH2PO4 and PLANTEX CSM+B?
So I was searching through rexgrigg.com, and I noticed that he wrote:
"MIXING UP KH2PO4 AND PLANTEX CSM+B OR IRON CAN CAUSE PROBLEMS."
If KH2PO4 and PLANTEX CSM+B usually come in the combo packages, both from Rexgrigg.com and GLA, how are you suppose to dose them without causing problems?
If do you dose them together, what problems would one encounter?