Friday, July 25, 2008
Tilapia Fish Ponds
This year we created two fishponds and stocked them with 200 2-inch (5 cm) talipia. We choose talipia because of their protein levels and also that they can easily be utilized as human food or used to create organic animal feed. The food source for the talipia is a grass basket that grows algae, which they in turn eat. We are curious to see how they survive the herons and frogs that surround and live in the ponds.
The ponds themselves are shallow (about 12x25x4 feet)and heated by the sun. Aerators that restock the water and remove gases at the same time draw water from the large pond at the botton of the hill. The water is pumped using solar power from an array of PV panels. The set up is shown below.