seedlings/humidity dome

anyone want to give me some pointers... seedlings came out how long should i leave humidity dome on ?!?!

You don't need a humidity dome for seedlings. I never use them for seedlings, only clones.

Seedlings do not need a dome at all. The only reason for the dome during cloning is to keep humidity high. The seedlings have roots so they do not need humidity for life support.

If you were germinating your seed in rockwool for example with a humidity dome over it just take off the dome as soon as she sheds the seed shell and/or you see the first serrated set of leafs. It helps to keep high humidity levels and (somewhat) high temps to induce faster germination and also helps soften the shell a bit taking less time for it to fall off; the humidity dome encloses the warmness and the humidity, make sure you have it over a warm place or a heating pad set on low, there's no point in having a humidity dome if the temps aren't high enough to cause humidity to rise. Hope it helps.

I use domed trays for germination (or syran wrap and tupperware) and as soon as those first leaves come out, I get them the hell out from under there and in front of a fan. Gotta train that stem before it gets all lanky 'n shit.
maybe that helps

(the fan should not whip the poor things around, so either an underpowered fan or an oscillator at low setting, dig?)

word word thanks for the advice peeps!!! im starting i plan on cloning also how long should i leave the clones under the humidity dome??

Keep them in a sealed, humid environment (mist them at first, and then only once/twice a day if they are drooping). I prefer the domes that have vents, you can also prop as others have already said on this thread. Monitor the cuttings every 2-3 hours to see if they react to the changes. Usually in the first 4-8 days you can tell who will make it and who wont. Once you remove the "wont"s you can start hardening off the "make it"s. Again, propping or venting to start introducing drier air, misting no more than twice a day, and a fine mist at that. You do not want to over saturate the rooting medium. (this is all irrelevant if you do aero or hydro cloning)
There are hundreds of great threads on cloning on here, the search tool will pull the best ones up in the first page or so.
Once they are able to take all vents or a 1-2inch prop without drooping, I would remove the dome. Again check in 3-6 hours to see if this phases them, if not, they are good to go. Then wait for roots to pop through medium, I prefere root riot/rapid rooter product at the moment, and transplant to preferred growing medium, water well at first and don't re-water until the plant looks frickin dessicated or the container feels noticeably lighter. That first week or so it is really important for them to just forage through the friable medium and establish the rhizosphere.
Practice with tomatoes, they root 10-20 times faster and are otherwise a fairly comparable species.
MPP

sounds like u got it down packed thanks for the info bro!!!

Great thread, perfect for me who has a tall lanky stem under the dome AND a dead sister thanks to damping down disease. So, no dome and a gentle fan on the other side of the room providing a little sway.

Thanks!