I was taught to add the micro first, or else lockout would occur.

Turtle said.
"First, mix the correct amounts of Grow... mix.
"Micro... mix.
"Bloom... mix.
seasmoker Reviewed by seasmoker on . General Hydroponics I just picked up 3 bottles of General Hydroponics Grow Micro and Bloom. How much per gallon should i use? Rating: 5