I made bubblers from plastic Folgers cans and air pumps using a BT, alma, and hyb 0023 cutting. I tried an old aquarium heater on one can then the heater died. All three developed tiny roots in a couple weeks then stopped growing. A month later there were all still healthy with no die back but the leaves started yellowing since I had never changed the water. I just added a cap full of peroxide every few days. The water didn't smell and I never had to add any, but I assume the ph had changed. I decided to pot them and they seem okay still, but it has only been a few days. I used hard well water only, no hormone or nutrients. Removed all but one leaf on each.
I enjoy your videos Henry!