This Kratky method of hydroponics has me fascinated.  I love the idea of fresh greens with a set-it-and-forget-it style of maintenance.  The thought occurred to me that this perhaps is a perfect use of the high nitrate water we extract from our desktop aquaponic system, so we are giving it a go!  The Kratky method uses water filled with fertilizer hydroponic nutrients, so instead we are going to use the nutrient rich waste water that I get from the necessary water exchanges from the fish tank to keep my aquaponic system healthy for the fish.

For the first experiment, I have taken two kale plants that were started with seed from our garden a season or two ago.  They are nestled in a net cup and surrounded with Hydroton clay pellets.  Placed inside a half gallon mason jar, we filled the water such that it was just 1/4 inch above the bottom of the net cup.  To help prevent algae growth, I wrapped the mason jars in aluminum foil and placed them under our florescent lights.  Let see what happens now …