Dylan and I have been working on getting hydroponic testing up and running. The basic set up is a large tub filled with dilute nutrient solution, with aeration provided by an air pump. Floating on top of the water is a large foam sheet with holes. In each hole we put a 2 ml tube packed with rock wool and perlite along with a seedling. Extending below the hole is a large bubble tea straw to make sure the roots don’t tangle together while growing.