Brocoli said:
I've done just water with no source of aeration a few times and it didnt work very well for me, much better luck with just some soil and keeping it wet. Although looking at your pic again, those look like some meaty stems. New tender growth is best for taking cuttings. Could try to scratch the epidermis a bit to make it easier to send out roots.
I agree with the new, tender growth statement from Brocoli, and the aeration statement as well.
I made my own bubble cloner (click - link to google pics of bubble cloners) and have been getting 100% success for a wihle now. I use only tap water and keep it at 76 degrees. I have a pic of my diy bubble cloner in my IG page (link also in sig), look for the tote with the neoprene inserts about 6 to 8 rows down in the current pics.
I even tried seeing how long I can go and still get over 60% success without changing the water - 7 months!! I did have to add tap water as it evaporated, but never changed anything out.
It may not be as cheap-n-easy as the ball jars, but it was a fun project to build and still pretty easy without costing even a fraction of the store-bought versions.
I have also found temps to be very important for cloning. 74-79 seems to be optimal in my experience.
edit: Took a quick screen shot of one of the pics from my IG (there are more pics of it in action)
Maybe $35-40ish in materials per cloner, including the air pump.
I only have 15 sites in each, but I could have fit up to 24 pretty easily. I just like them spaced out.
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