3 Liter Grow

Unwritten rule is: Smaller pot, smaller plant. But you could theoretically grow big plants in small containers if you frequently fertigate in coco+perlite medium (3+ times a day). If you are new grower, start with soil. Its the easiest way and use pots that are at least 15 liter. Start reading on the topic, check out sites like growweedeasy, never stop learning new things, there is a lot of material to digest and do it one step at a time or you could get intimidated.