I am going to leave the smaller blue mystic in the 3g.

From my experience that rule has worked well. Ive tried bigger plant smaller pot and vise versa. Foot per gallon seems the best... The thing I dont like about the 5g buckets is that is creates an air tight seal with my tent floor so they dont drain well. I had to make little trays with rocks inside to sit the buckets in for drainage.

I also like the 5g buckets for their stability. With some 3g buckets it is very easy to topple it over with a bigger budded plant in it. So what I will do is fill 5g buckets with soil to a level thats good for the size plant im putting in it. Not too small of course!

:stoned: