Hi again Souled,
Hang in there with the humidifier idea. You might need a second air stone. I had better results when I upgraded my air pump to a two nozzle unit.
2x the input= twice as much air flow=more humid air into the tat.
If you're concerned about the $$ for an upgraded pump you can purchase an adapter for your current pump for a couple of bucks.
One thing I didn't ask...(my bad) How big is your tat? That might make a big difference. And, how large is the jar that you made into the humidifier? Actually I don't know if the size of the jar matters as much as how big a space you're actually trying to humidify.
I'm glad that the bubble pool is working for you!
![Smile :)](./images/smilies/icon_smile.gif)
To cut down on the alarming noise, you might want to try this...
(I considered doing this if my "bundy project" didn't work).
Using a "pill bottle" shaped container, rather tall maybe 4-6" (or larger depending on the size of your tat) and countersink into the substrate or hidden behind something. Make sure that your crabs couldn't slip down into the mouth of the container, (or you'd need to use some sort of netting to cover) then, submerge the bubble stone to the bottom.
Having a deeper pool might muffle the noise but still provide the necessary humidity.
Please let me know how you made out.
![Very Happy :D](./images/smilies/003.gif)