i have a question about nutrient solutions... i have the GH 3 part series (grow, micro, and bloom), what do the numbers on the bottle mean? (Example: florabloom is 0 - 5 - 4 ) Also, do i use all three of them at once, or only mix two, or should i just use one at a time. please help me. i'm new to this. i literally just started growing about 2 weeks ago. Never done it before. i got me some white widow seeds and i'd hate to f*ck it all up. oh yeah and can somebody explain the lucas method (i think that's what it's called). your help will be greatly appreciated.... thanks people.