Pot size....?

I posted a similar question a few days ago but failed to give exact details making it hard to get a good answer. So i purchased 3 super grape ape clones and flowered them immediately. I have them in 2.7 liter pots. Is this big enough to support the plant all the way through the grow cycle? Or do i need to transplant them into larger pots? They were 6 inches tall when i got them. But there are now a few roots coming out of the drainage holes in the bottom. Does this mean they will need more room? Any advice would be greatly appreciated

You should be fine if you're fruiting small cloned plants like an SOG type grow op where the plants will be 1-1.5 feet tall at finish. If you want you can move them into larger pots, I'd do this if you were growing in soil. If it a hydro grow in a flood and drain table setup then you shouldn't have anything to worry about. Most people grow small clones in 5 or 6 inch square pots. Those are pretty tiny.

Thanks. I am in soil and They are 5.5inch square pots.