No progress on my project today, so I found another example of what i am doing. Someone made something similar to mine to clone his Cannabis and I thought I would share a picture similar to what I am trying to build (mine is for hybrid peppers propagation). he seems to be growing his in a grow tent so he does not need a humidity dome. I do grow legal hemp but to be honest this is overkill for such a plant, they will root in damp vermiculite. I only built mine because peppers struggle to root and stagnating water leads to mold growth that will kill roots. Bubble Cloners oxygenate water to increase survival by decreasing the chance root mold forms fast enough to kill the roots. I actually prefer less gadgets to tinker with if I can get away with it.