Really need help!

[seymour.2007]

I really need help if anyone can-iv been growing for over a year now with various
Pot sizes and veg combinations but I don't feel I'm getting the full yeild from my set up
Which is: a 600w HID, 4" fan and filter and I grow in coco up 15ltr pots with the full
Canna nutrients for coco. My space is a wardrobe which is 4.5ft 8 2.5ft and 7ft high.
I'm about to start some super lemon haze and I was wonderin if anyone could give some advice.
- need to know how many plants, how long to veg and what size pots to get the max out
Of my stuff as I can only seem to pull 10 ounces max from 6 plants in 15ltr pots veggin for
4 weeks
Any help would be great guys.

 

[seymour.2007]

Sorry my space is 2.5 deep by 4.5 wide by 7high in feet

 

[2Lazy]

2 week seedling stage
2 week veg stage
2 week Scrog/LST stage
10 weeks Flowering
3 Gallon SmartPots/AirPots/RootMaker 2
Botanicare cocogro compressed coco
Canna Coco A & B
Rhizotonic
CannaZym
PK13/14
CannaBoost
Botanicare Cal-Mag Plus
Liquid Karma

Keep the light 12" to 14" from the top of the canopy or up to 6" if possible. Water 1 liter at lights on and 2 liters 6 hours later once established.

Just my suggestion. Hope the input helps.