By: Van TV
By: ReefDudes http://fishtankprojects.com/diy-aquar… has the complete set of instructions including arduino sketches, schematics, photos and complete instruction on building your own automated dosing pump
![DIY Electronics: Arduino Automatic Aquarium Water Change [Reef Tank]](https://img.youtube.com/vi/zttS4fwUpHg/mqdefault.jpg)
By: judoisonattack I’ve had a few requests for the source code, it can be found here: http://pastebin.com/4Bi5dVDQ