We are at the beginning of a new revolution, the Internet of Things (IOT): Smart networked devices and sensors that collect information about their surroundings, communicate with people and machines, make decisions based on programming models and interact with the physical world through control of switches, motors and actuators. Many of these devices are low-cost, literally a few dollars and they are getting cheaper all the time. The IOT offers new opportunities for the aquaculture industry to improve on-farm efficiency.