Nah, anything more than 3 gallon pots is unnecessary with Coco unless you're planning on growing some giant trees outside.
These are my babies in 2 gallon pots on day # 30 veg:
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I'm only on my first grow and I decided to try coco. So far everything is going smooth as butter and I can't imagine even trying soil.
I attribute a lot of my success to these two threads here:
Good roots in coco come with sound watering practices period!!!!!!!! I prefer 100% coco. No need to mix anything like perlite into it. I prefer simple hydroponic nutrients that are easy to use. No additives or 15 different bottles to measure. That kind of stuff only invites problems in my...
www.thcfarmer.com
The first time i hit 1.5 on a light was 9 plants in one gallon pots fed twice a day. Then I got away from that not thinking about the pot size being the reason. Took over a year to think about that again. Then I did a bigger plant in a 3 gallon and got like 12 oz off a low yielding cookie cut...
www.thcfarmer.com