I’m using a 3,5 and a 7 gal smart pot to see which is best for autoflowers.
Not many people are aware the green light will habe no detrimental effects in your plants during bloom as that's the only spectrum unusable. Good job on your homework. I've used 3gal. fabrics for auto and they've all grown within a couple inches of 3ft. Good luck on your grow!
Coming along nicely ;)