You can do it now if you want. I never did it more than once, so I can't say. You probably can, I would think, but when you fim you'll get 3-4 new branches coming out the top so, what, you want to fim each of these as well? Seems like a bit of overkill to me.

Don't know how each will respond. I did mine with a Nirvana Afghani and it worked pretty well.
Perp Reviewed by Perp on . FIM pruning my babies are almost 3wks into veg. all of em have 3-4 distinct nodes with their 5-6th set of leaves coming in. i'm limited in space so i'd like to try FIMing them. when is the best time to do this? is it possible to do it more than once? i have a variety of sativas/indicas, will each type respond differently? Rating: 5