In the last meeting of the Building Automation and Microcontrollers and Aquaponics interest groups we got off to a great start with the construction of our trashcan biofilter. In this meeting we’ll add the final touches to the biofilter and build a housing for the automatic fish feeder. Then we can finally put the fish in!
Take a look a this great document to get an idea of how the biofilter is constructed: http://www.aces.edu/dept/fisheries/education/documents/LowCostBiofilters0305.pdf
You can find the documentation for the fish feeder here: http://www.super-feeder.com/asfmodel.html
Also, take a look at the last meetup to see some pictures of our progress.