Big Bud autoflower shoecab indoor grow

Yep they look stunted. I would have to say over watering. You only want to water a little bit by the base of the plant when they are first starting off in a big pot. If you get the whole thing wet then it does not dry out because their is so much water and the little gal cant drink that much. My guess is if you let it dry out and she does not rot from the moisture and recovers then final about would be in the range of 3-10g per plant. The heat should not be that bad. 29 is manageable for them.