Bigger is better.

In hydro you worry more about the root ball. You need to figure how big you want the plants to finish and then select the net pot accordingly. For SOG grows the 3 3/4" net pots are about as small as you want to grow. The plants finish less than 30" and do just fine. For a DWC you want more of an 8" net pot and the plant can grow up to around 48-60" tall at finish.

There is no chart that I know of but experience tells me those sizes work.

Is that want you are talking about?
Zandor Reviewed by Zandor on . Question on root space Is there a chart that shows how big of a bucket a plant will need for whatever size it's at? Zandor one of your charts would really be helpful here. I want to know this because I am making a hydroponics setup for my tomatoes and I would like to know how big to get the buckets. I am also going to have seperate buckets with a DWC setup on each of them for each plant. I'm mostly making everything to grow lowryder strains so the plants wont be very big. Then once Gren Green's breeders book comes Rating: 5