The initial project is an Arduino based fish tank LED lighting controller krusduino

The latest release of software is r14.

And the Krusduino User manual can be found here http://code.google.com/p/dangerduino/downloads/detail?name=KrusduinoUserManualv1.pdf&can=2&q=#makechanges

The main thread for support can be found here http://www.ultimatereef.net/forums/showthread.php?t=363432

The follwing link Nano-Reef Post 1 and Nano-Reef Post 2 give an overview of the hardware. Page 3 of Post 2 shows some photos of the arduino.