If you do get over 5 oz from two plants under that watt light then you will have done something very good,i would go more towards 2/3 per plant.I use auto pot with 2 x 600 hps lights, and never do more than 4 plants with coco and canna nutes.Of my last grow i got 36 oz from the 4 ,3 of them produced 10 oz each with a weak link that produced the 6oz.the strain was a uk strain called barnsley jack,jackherer x blueberry x cheese.This grow was going well till we got a tip of something was gonna happen sure ya understand what i mean.My advice to any new grower is always be prepared to take em down if you have any reason someone may have informed on you,and tell no one i mean no one.The last grow was exodus cheese first time i have done seeds in time,but the plants looked amazing and the reason i did seeds verse clones was to see if the clones out grew the seeds and under the lighting i have stated above the answer is the seeds was a little bigger at week 4 of veg.The seeds had split after 3 days and by day 5 were 2 cm tall with there tiny 1st leaves,What i love about auto pot growing is once the roots from clones or seeds reach the bottom of there pot then its just a matter of tending to the tank 50 ltr.