So, I have begun a build on the LED fixture for the nano tank. The fixture will be 100% controlled by the open source reef controller we are developing here at Open Reefs. The features on the to-do list includes weather patterns, moon cycles, and the standard morning, noon, evening and night curves. I am using an aluminum enclosure that was originally meant to house data and power cables on the wall of a laboratory. It works perfect to house the drivers, the wiring and the transformer that will power the 10v PWM signal and the fans. In addition to controlling the LED's themselves, there will also be a temperature sensor inside the enclosure and based on that data the fan speed will be adjusted from 0 to 100%. Here are some preliminary pictures of the setup. Enjoy and stay tuned to watch this build and a lot more!