Never had much luck with them, for cannabis or my veggies… Lots of damping off, easy to overwater…
I get the tails, into starter mix / solo cup size cups for the beginning, then their final home. My ladies outside went into 20g fabrics, and inside my moms will stay in 5’s. clones will go into 1’s for sog / scrog style. Autos and unsexed I’ll put in 3’s. My first batch of autos didn’t use nearly enough of the 5 to justify the space, I think the 3 might be perfect. I prefer to transplant / pot up as few times as possible really… Once they are big enough to move from the solo cups, they can hold their own and appreciate a richer soil…