Obviously your training method and vegg time will be huge factors ....but I wouldn't do more than one plant per container ((especially a bucket or pot)) and for sure not different strains if you did decide to do that....different strains can have different needs and you could see how that would get tricky having them in the same bucket........just my opinion .......everybodies got an opinion and a butthole .....that's my opinion ....you'll have to wait on my butthole though .....I've been in a lil trouble with my pic selections here lately......give it some time
Inda