The herb plants (basil, thyme, parsley, dill, mint) in the hydroponic garden are all bigger. I added about 2 liters of water and 8 mL of the nutrient solution to each garden after returning from Florida. I noticed some small black dots on the bottom of the basil leaves. Looking closer through a macro lens, the dots are tiny bugs. One type looks like nymph versions of Stink Bugs and another type looks like Aphids.