I saw on Etsy another variant of the Mason jar to AeroGarden conversion kit, this one with an air hole, hose, and bubble-stone. The idea is to connect to your aquarium air pump and bubble air through the water and nutrient solution continuously.
I don't know if the extra air will promote or inhibit algae or mold - that's why I'm experimenting. I do know that the background hum of the air pump and the froth of bubbles through the amber glass jar is very soothing. That alone might justify the whole thing.
FREDONIA & GRIT ROCKIN' AERATORS
CASTOR with ROMAINE LETTUCE
JENNY of NEW JARSEY with GENOVESE BASIL
SHEBA in the BACKGROUND with
SOME KIND OF TOMATO PLANT
"I aten't ded."