My autoflowering seeds are at about 8 weeks and st...

most likely your autoflowers have a percentage of photoperiodic genetics and they should have been transferred 12/12 at least at the 6th week long ago. but now it’s not too late to do it. start to increase the amount of potassium, magnesium and phosphorus in the solution and translate the lighting 12/12

Sorry to say "fast version" means fast blooming photoperiod strain it's a common misunderstanding that even I have made reading through growers diaries. So 12/12 with no light leaks will bring on blooms. Good luck Sweet Seeds has some great genetics.

yes switch now they need 12/12 they need total darkness to bud good

Yes u need to switch. Like the breeder said it's a fast version.

12/12 is the only way to induce flowering with a photoperiodic strain.

You have to switch to 12/12. Killer Kush F1 Fast Version is not Autoflowering. Our 'F1 Fast Versions' are not autoflowering, but are photodependent versions of fast flowering. Remember, our autoflowering appear with the word 'auto' in their name. For example: Sweet Gelato Auto®️