New Grower Cal/mag question. Never knew about this one..

[weedlife]

Yeah. I learned that the hard way. I actually gave them full dose the first watering.

thanks for your input.

 

[kicker308]

Mix solo, CA/MG locks NPK if mixed. Being the 5th week is your first real full dose of nutes. 4th week of CA/MG and Humic is prime then once again at week 8.