I don't particularly let it dry out, maybe the top half inch or so. I use Alg-a-mic, which is organic, but the rest is a hodge-podge of Canna, H&G, and Botanicare.
I guess I'm wondering just how much should I be watering these 5 gal. I know, I know, it's personal, but jeez, 10 sec seems like a...