New Grow Big Bud XXL

hi everybody i Just got some big bud xxl seeds today i have never done them before does anyone have any advice for me?
i plan to use compost with perlite vermiculite in 15 litre containers fertlise with cana vega/flora 600 watt hps 9 plants per light. does this sound about right? thanks guys any advice would be great need this one to go smooth

I have 2 about 3 weeks into flower atm, i used canna also vega and florres, used a MH for veg and and HPS for Flower, there looking good so far, i've had no problems so far,
It's my first grow as well