Hydroponics is the art of growing plants without soil. All of the nutrients is delivered through a unique system that transports via moving water. Chris Wimmer is an urban hydroponic hobbyist who blogs as The Captain. His blog shows how to apply hydroponics to urban gardening to maximize yield. Learn how to build or purchase a wick, ebb & flow, aeroponics, NFT, or drip system. DIY projects can cost a fraction of the off the shelf systems. Common crops to grow are basil, arugula, thyme, chives, tomatoes, chard, rosemary, and hot peppers. Chris is very interactive and typically responses personally to all emails and blog comments.