right on, those intainers are massive and so so good,, so much soil too,, those are going to rock for you
Yes i did several grows in my Earthbox with 2 plants in it, works Fatastic, make sure to set the whole thing in a tray so when the water over flows from the air gap it has something to catch it, or it will run onto the floor, depending on where your grow room is you may not want free flowing water , i put a small cookie sheet type thing under mine and caught the run off , and just dumped it in the sink when it was finished dripping,, grew some really good bud in that thing