what do you mean by air prune? is that like the root will dry out and the part outside of the block with die off? i germinated some bag seed and they all poped, i have them in rockwool plugs in a dome. they have only been in the plugs for about three days and roots are starting to come out of the bottoms of some. i was wonderingNo , the roots seems to air prune themselves . I have never trimmed them and have never had any root rot at all.
1. do i need to trim the roots at all? i'm guessin i don't judging from your post.
2. how big should i let them get before i put them in to the 6 inch blocks? i was thinking i would wait about a week but wondering if i should make the move now.
3.when would you start using nutrients when starting from seed?
sucks you broke a mainstem but like you said you have some new smoke for xmas, you should wait til xmas day kinda like a present to yourself. and as always thanks in advance, my grow room has come a long way thanks in most part to this thread.