Gardening

It's called the Kratky method for hydroponics and it's ridiculously simple. The video below explains how it works. Lots of people are doing this with 1 gal coffee containers drilled out with a 2" net pot. From what I've seen it seems to work best with leafy greens like lettuce. I've already got some lettuce seedlings started in some rockwool squares I picked up at my local hydroponics store. When they get a little bigger I'll transfer them to a 2" net pot with some Hydroton as my grow media. At work we have a surplus of 1 gal coffee cans, so I'll drill those out and use them. I've already picked up some liquid hydroponics fertilizer which I'll mix up per the manufacturer's recommendations for lettuce. If you have them outside you have to be careful if it rains because you want the water level to remain at the same level before it rained.