Small Setup Autoflowers

Hi So i was wondering what everyone thought about growing 2 autoflowers under one 150watt hps. They would be in 5 gallon bags filled with coco coir. I would have a tent that is 22"x36"x63" and a 6 inch inline fan connected to a carbon filter and up into my attic. I would be using fox farm tiger bloom and thats all for now. I think it would produce good results. half an oz to 1oz per plant. what do yall think? am i missing anything?

nope, everything sounds good, when i first started growing indoor about 6 years or so ago i had a 150 watt lamp it was great, i was able to pull about 3 or 4 ozs off it eventually. best of luck