Heres my "hillbilly" aka cheapo version...lol
I cut my rockwool cubes up a little...I get 2 clones for every cube...saving $ already...lol
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After they are tube shape I cut in half
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The halves with a small hole in them need to be plugged up...use the cut off pieces/left overs from above step to fill it up
Make up some cups with 4 holes in bottom edge of each cup...12 used here so 24 total...they are dollar store shot glasses (plastic)
Take a clear top foil pan...also dollar store...and hot glue half the cups to the bottom of the pan...here I did 12.
Put in a spacer/bottle cap in each cup glued in the pan.
Second cup gets the rockwool cube (cylinder) and a clone.
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In the end it should look like this.
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For my clones:
I shave all around the stem on ~45 degree angle...looks like a sharpened pencil.
Dip it in water to clean off any debris and then dip it in rooting powder.
If stem is tough enough I poke it into the dry rockwool...or use a toothpick to make a hole first if needed.
It shouldn't poke threw bottom, but be 1-2mm just inside.
Cup with the dry rockwool and now a clone in it I sit into a bowl of water (tap water ~ 7.0 pH...6.0-7.0 should be good) until it soaks up fully...takes seconds.
Then they go into the trays.
Mist/spray the clear tops with water and put them on...repeat misting, only the container tops, daily.
Soak rockwool only when/if its almost dry...usually about every 3-5 days.
If kept warm...70-80 degrees...you should have roots show in 7-12 days.
I use this double cup because I kept over watering in the beginning and killing the clones. This way they absorb what they can and spit the rest out.
The clones wont get much of their water source from the rockwool until there are actual roots. In the beginning they drink from the moisture in the air...thats why I use the humidity dome.
When roots start to show I bend up the corners of the foil pan to create an air flow to harden off the clones before I permanently remove the dome. If the clones dont wilt when dome is removed I usually plant them next day.
I found the hot glue didn't stay stuck to the foil well so now I just use 2 of the clear tops. Trim the edges of one so it fits inside the other to make a "seal".
Now there is prob a million things wrong here for some to pick at, but I dont think I've had a clone not root in months...check this one out...forgot to water the rockwool until the next morning when I noticed unhappy plants all droopy...then 10 days later....
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Roots grew above the rockwool...somehow...and the 5 others in the tray did the same thing....lol