Photoperiods and autos in hempy buckets

Had some problems with photoperiod germination so decided to throw in some autoflowers to fill up the tent and see how they do under 12/12. They are all in 10l hempy buckets with perlite on the bottom, 50/50 coco/hydroleca on top of that and the rest pure coco. The photoperiods are about 3 weeks old at this point and the autoflowers just starting veg. I started main-lining the Jack Herer a bit too early so it was stunted for a while.