Mesh/net pot size for hydroponic

[NottsFirstTimeFarmerBoy]

So I'm new to hydroponics and was wondering what is a ideal pot size for hydrophonics set up
I guessing the pot doesn't need to be too big as it doesn't contain the roots
Is 3 inch too small?

 

[Icemann420]

6 inch.

 

[Icemann420]

3 inches wil work but kinda small I just harvested my hydroponic bucket plant if you go to my signature look for lsd25 grow. Some massive root pictures. You can see how they grow and y a 6 inch net basket is best choice.

 

[Icemann420]

Icemann420 Grows LSD 25 From Fast Buds In DWC click my link if you would like to take a look at the last pages. To see the roots and net basket.