i dont go for pot sizes or systems to work out my yield though i do use relitavley deep pots as to wide as the roots seem to love the depth more i go by watts usualy pulling round 1g per watt so 400w would be 400g but thats probly just me lol i can easly pull 30 ounces from my 2 400watt hps i use canna coco with pearlte and vermiculite just mix it half and half on the pearlte and vermiculite and mix it into the coco get quite a bit in there too and i also use clay pebbles in the bottom of the pot around an inch deep then i lill layer of the coco mix then just throw the plant in and pack it round the edges oohh i also put around 10 sheets of kitchen roll in the very bottom to stop the roots from escaping just cut it into circles once it is done i give it a goo few jugs of feed through the top to get it nice and wet then from there i start feeding in saucers under the pots by hand i can pretty much keep the saucers topped up as the clay pebbles work as a barrier from the coco and stop from flooding the plant and also keeping the coco nice and airated the feed is a peace of piss too lol
feeding mix Per 10ltr
Veg:
Canna A&B 40ml around £12 (For Bottle Of A and Bottle Of B together)
Check Ph With Essensial Ph metre (there like 40 quid) an a bottle of ph buffer 7 (for around £2)
malt vinegar to correct PH around 40p a bottle
Flowering Per 10 ltr
Canna A&B 40ml
Ionic Bloom 30ml
Canna Pk 13/14 15ml gots to be carefull when you mix this in as it can turn to crystals straight away and fook your feed up
Organic Seaweed 15ml
i will use that as much as the plants will take then ill let em dry out for around 3 days then feed em ph corrected water only for a day or two then force feed the fookers for around 10 or 15 days lol
erm what else nope think thats it sort of forgot the question now any whoo hope it helps lol just cropped last week so been celebrating all day lol sorry for waisting time lol hope atleast one thing i said was helpfull Peas Out
EDDDDIT!!
i just use a 40ltr bin to mix up my feed..... hmm now i have typed it doesnt seem like i needed to edit lol