10 ltr sounds good brother
When i first started growing i used various pot sizes as the ladies grew. All worked out well.
Then i use to start and finish the seeds in 15 ltr pots. All worked out well.
Now i just use two size pots. 7.5ltr in veg and 10 ltr flowering.
I know starting out seems daunting. Because there is so many ways to grow this plant. But at the end of the day its a weed *hope im not insulting anyone
*
If you stick a seed in the ground it will give you a little happy cabbage.
But if you give it good soil and good light you will end up smoking the Devils salad
the lads and lassies on this site a great. Ask anything and wel try or best to help you.
Keep on growing brother.
Id love to see the pride on your face the first time you roll "your" own spliff
waffling on is all good