I made a mini bubbler from a plastic coffee can and a 3 inch netpot and a 1inch airstone. Snipped, trimmed lowest node leaves, root hormone, jammed it through a rapid rooter, backfilled with hydroton and waited about 10 days and it worked under a weak cfl 18/6.

I thought it didnt work because the stalk got really fat at the bottom, upper stalk turned purple (normal I guess) and the lowest leaves that I'd left on shriveled right up as the top sucked out the stored nutes in them I suppose. I was about to pull the plug on it but then I saw all of the roots starting to poke out of the netpot.

So whatever you try, let it go a nice long while. If it's green, it's not dead yet.

Some people just use the old method which is slice at an angle and plop it right into a glass of plain water and wait.