Bobby has been building a new Dutch Bucket hydroponic system. This is a very simple recirculating hydroponics system that works great for fruiting vegetables such as tomatoes, peppers, and cucumbers. It can be set up inside a greenhouse, in your backyard, or on your porch.
For nutrient mix, he uses Masterblend 4-18-38, mixed to the manufacturers specifications. It is available online at various places, but I order from Morgan County Seeds out in Missouri. Other types of hydroponic fertilizers can be used just as well.
Here's the link to the video where I explain how to mix it: http://youtu.be/vYv9iu2NI3M