ok ok:
18/6 is fine for veg,
transplant when the pot is full of roots-not brimming but a root ball,
use perlite or similar yes,
add nutes for sure if soil has none, if it does dont go overboard,
high in 'N' for veg, thats the first number so 15-5-5 or such,
keep ur blue fluros as close as u can get um but make sure u have fan on them to keep um cool and to build up strength in stem.
im talking too much: havent smoked today but its turning up in bit: nyaaaaaaaaaaaaaaaaaaa need a spliff!
hope this helps