bad idea. true.
i have two as we speak share'n a galon jug i cut the top out of and put holes in the bottom. they are about 6 weeks into flower.. i think... (btw, write dates down so you know stuff or do something so you know. all i know about mine is i started with two seeds in january.. now im where im at..)
oh yea, the two plant thing... (sorry, long day(s))
the two share'n the one 'jug' have far less trichs come'n in and they are both females.... and... in a diffrent 'pot' 10 by 10 in. or close to it.
one was male, the other female. cut the male, AND grabbed the rockwool cube that i planted in the dirt and slowly pulled it out while rotating my wrist... (yes, i cloned a male...)
at anyrate, the female left behind is still doing well in trichs but lacks branches from being overcrowded by the male for awhile...
thats my $0.02.
and consider me a newbie.
good luck!