Big and Deep Fishponds

The livestock wastes end up as nutrients in the fishpond that enable prolific growth of many kinds of plankton as free feeds for polyculture of many kinds of marketable fish feeding at different trophic levels such as Carp and Tilapia.

Fish produce their own wastes, which are treated naturally in the pond water to produce a second cycle of nutrients for crops in aquaponic cultures on floats, and on the dikes. In addition, the fish fertilized water percolates into the berms both water and nutrients to the crops growing on the berm.

In the big and deep fish pond 5-6 kinds of fish live in harmony in the same pond consuming most of the plankton feeds produced everyday. The problem with plankton which is form of algae is that if there is enough nutrient load they overpopulate and overload a water system by consuming all the oxygen, and not leaving any for other organisms such as fish. The idea is that these fish can be used to

1. Feed on site workers/residents
2. As a cash crop
3. Ground up as an animal feed

Prof Chan has proposed the idea of Multiple Fishponds to further optimize the rate of biomass utilization in the IF&WMS.