Any ideas what size pot I need to put my toms in? I've seen some pots which are 5lt but grow bags with 3 holes in are about 27lt so will the pots be big enough? I used grow bags last year with drip feders to water them but they didn't work so I was thinking of trying capillary matting underneath the pots with a resevoir in addition to watering them in the evenings. I just need to know what size pots to get.