Lights cycle and size of bud?

I agree with what was said earlier, but you don't have enough soil to make huge buds, and it is highly strain dependent. If you look at my shark and gorilla skittles journals you will see one with massive bud structure, and the shark with more of a popcorn like bud consistency. both are the same age and grown under the same lights. Also I am growing in solo cups around the same size as your pot/water-bottle so that should give you an idea of what to expect. I'd say at max you will get a large bug the height of a 12oz can and 1/2 the width. Hope that helps! P.S. for huge buds : critical strains golfball size round buds: cookies small: most sativas and like landrace thai

Hey Growmie, Since you're growing an autoflower there is no need to change the light cycle they'll flower perfectly fine under 18/6. Now as far as how big the buds will get depends on a lot for starters you're growing a Sativa dominant plant, so those buds sometimes end up airy compared to indicas but this isn't always the case. Hopefully, I answered your question and remember Happy Growing and Free your mind one puff at a time.