100% cloning success rate for me:
- (1) Humidity dome and tray
- (1) Square divider insert for tray (to hold your rockwool cubes or rapid rooters securely and promote root undergrowth)
- (1) Bottle of cloning GEL (I prefer the gel over the powder)
- (1) Heating pad
- (1) Light (you can use a little CFL or a T5 tube, I like to use two 2' T5 tubes over the dome/tray)
- (1) Little spray bottle for misting the clones and dome
- (#) Then however many clones you want to take, just make sure you purchase the proper number of rockwool cubes or rapid rooter plugs. (I prefer the rapid rooters although I think General Hydroponics discontinued that product so just grab some rockwool)
If using rockwool you will want to soak the rockwool in 5.5 PH balanced water for an hour. The glue in the rockwool is more alkaline so you need to bring it down to 6.0-6.5 PH when growing in soil. I would suggest using rockwool cubes or something to help keep the clone and its new root growth secure/stable rather then trying to do it directly in soil or something (would work, but won't be as successful in my opinion).
Take clones from the lowest part of the plant, they will root the fastest no matter how big or small they are. Taking clones from a flowering plant can take a bit of time to reveg depending on when you take them but clones root even faster when taken from a flowering plant. You can expect roots in as little as a couple days to 2 weeks. I don't bother using any clones that take too long to root as they can build up root rot that goes unnoticed.
When I first take a clone, I find one on the lowest part of the plant, cut it at a 45 degree angle, lightly shave a little extra at that cut then quickly dip it right into the rooting gel bottle. I even let it sit in there for a minute or two then I simply stick it into my presoaked rockwool cube only till i feel it poke into the cube, then I just cut a little piece of rockwool and shove it into the same hole I stuck the clone into to further secure the stem in the cube. You can cut the tips of the fan leaves if they are in the way of other clones in the dome, won't hurt them, the clones energy is going to root growth not foliage at this time so. This helps keep things a little cleaner as well so you don't have leaves sitting on top of one another and creating mold issues etc with all the moisture in there. Give the dome a little spray along with the canopy of the clones, place the dome over top of the tray and keep the vents closed for a couple days. Also, add about 250ml of ph balanced water (preferably distilled as well so there is no salt/chlorine build up in the tray) with a touch of nitrogen (5ml per 4L max probably) to keep the tray wet.
Spay humidity dome and clone canopy once a day, fill bottom of tray when needed. Open vents half way after a 3 days. Don't worry about yellowing leaves, clones look like shit for the rooting stage then bounce right back. I keep my light on overhead 18/6 but 24/0 or 20/4 works fine too. Some people root without any light over head, some root with it on 12/12 too, it really doesnt matter because the plant is just focusing on roots. Id wait till you have a bunch of roots before transplanting.
Hope this helped!