Simple.  A styrofoam top was cut to fit with aquarium set up as if it had fish and floats on the surface.  It will have a fish or two pretty soon but not today, unless I go trap some guppies or something.

3/4" holes cut out with a sharpened copper pipe on a 1-1/2" grid. Cutting holders made with a 2" copper pipe.  

Three green stem Brown Turkey and one woody VdB sacrificed for the experiment with two Red Maple tossed in.

 

 

 

 

Careful of the fish, they like to eat plant roots.

Hi Charlie,
Guppies would be ok, just watch out for the nitrates if you're going to give fertilizer to the cuttings.
At which temp will be kept both the air and the water ?
What age/kind of wood for the cuttings ?

Just an idea: You should try a reptile aquarium - that is with air and water temps and moisture controlled .

I would fear that two much moisture under and not enough at the leaves would lead to cutting's rot ...

Good luck !

Red Maple hates being called Elm so that was edited for correction lol. The temperature will be in the low 70's F.  There is an aquarium heater around here somewhere if needed. The BT cuttings are green while the VdB is last year wood as well as Mary Lane which was added after posting yesterday.  

All were placed in a jar of water immediately upon cutting to prevent air embolism. 

Two air stones were also added since the original post.  The leaves were somewhat droopy when placed yesterday.  This morning they are all rigid and at attention, a good thing I suppose...

  

The foil was left on as it was before and a bit more added to completely cover some areas.  By the window so I don't want light in or on the water where algae would grow.  Some will probably still grow but hopefully not much.  Perhaps some algae eating sucker fish would be appropriate?  I do not want a bunch of fish, just maybe one or two. May not even need fish. 

They call this type a bubble cloner on you tube. Some use humidity domes and some do not.  By the looks of the leaves now I don't see it as necessary but will keep an eye on it.  

Pretty much still the same.  I think they have grown a bit lol

 

 

Still have rigid leaves and a root starting on Mary Lane...

 

 

The leaves are definitely growing!   

Looking good!

You may want to consider an airstone in the tank to help provide Oxygen to the roots and prevent algae & bacteria from forming that can cause root rot.

Not planning on keeping them in there any longer than necessary.  Just a rooting project and lets me see it happening.  Lots of little pre root nubs showing this evening and the largest leaf on Mary Lane was mysteriously broken off and laying aside when I got home. Nobody knows what happened. 

Leaves take a lot of energy, it might have kicked it off since it is trying to put out roots...

Charlie,
Snaglpus (Dennis) started a topic sharing his success with Aeroponic Cloners,  http://figs4funforum.websitetoolbox.com/post?id=7023364 a link in his OP led to a Topic in another forum on DIY Cloners, https://www.icmag.com/ic/showthread.php?t=169382. After reading your Topics on the Fogger Cloner, http://figs4funforum.websitetoolbox.com/post?id=7042405 and this topic, I decided to test a simple Hydroponic cloner on green fig cuttings since I had all of the materials already on hand except for the 2" net cups and an aquarium air stone. The Hydroponic cloner is modeled on a Bubble Cloner,  https://www.icmag.com/ic/showpost.php?p=420641&postcount=1 . The air stone and net cups cost less than $4.00 total, the foam inserts are cut from 1/2 of an old dollar store knee pad. The commercially available Hydroponic Bubble Cloner, an OxyClone, http://www.oxyclone.com/ can be purchased for around $60.00.

Good luck and thanks for sharing Pete.  Seems my aquarium cloner project is a bust as was the fogger.  I have some mold issue.  The remaining three Brown Turkey (green) and VdB cutting (woody) are still alive but I can see the mold growing on them under water.  Going to just leave them and see what happens.

Charlie,
21 days later, roots are growing on all 8 fig cuttings.
Lessons learned, for rooting cuttings less volume of water is required, and changing the water every 7 days is usually recommended.
.
Attached is a PDF from the web of step by step instructions for making the cloner, Step by step bubble cloner set up (good for newb cloners).pdf     
It costs less than $20.00 for materials to fabricate two (2) of these DIY shoebox cloners, most of the cost is for the Dual Air Pump. One Cloner is used for rooting with plain water, the other Cloner is used to transfer and grow cuttings with a dilute nutrient solution after they are rooted.

Any update on your cuttings?

Hey Pete I dis-assembled the aquarium.  The cuttings were placed into perlite but died, just too much mold.  I gave up experimenting for awhile far as cuttings and am happily getting some roots on Sal's Corleone and El, Flanders, RdB and Strawberry Verte in perlite.

Hi Charlie

Like Pete I tried a similar aquarium bubbler cloner last year, I had some success and some failure, about half my cuttings rooted, about half were rotted due to being too deep in the water. I also noticed some cuttings were just too shy for this method and took too long to come around. Overall I think if done right it can be a succesful system but it is not foolproof.

Last couple of weeks I've been rooting some weeping willow limbs in a mason jar with water since wife, her sister and friend wants a tree.  Wish figs rooted as easy.  Have seen some say they put them in a glass of water.  They must have some kind of water I don't have lol.

Charlie,
Dan A's "Summer rooting Method" as I mentioned and linked in post #14 is rooting cuttings in a narrow necked bottle with just water. The water is changed daily and manually aerated, shaken to keep the cuttings damp. It works every time and has been 100% successful with all the cuttings that Ive tried, the procedure just have to be followed. Here are a few recent pictures that I posted in another topic.
  .

Yes Pete thanks, I did see that thread.  I just don't have the cuttings to try it with lol.  Next year perhaps.  What I do have I'm sticking with perlite for now.