I have a standard KOY
pond in my back
yard, with many gold fish as my aquaponic system.
I use a modified Earthbox system for growing my veggies.
I say modified, because I use the water reservoir at the bottom of each box as my
pond filter.
Each box then becomes a wicking box. Water and filter on the bottom, then a plastic divider, then landscape fabric,
then a mixture of coir, soil, worm castings, and charcoal, then a 6 mil plastic cover.
I will attempt to add some photos of the system.
I use a 3200 galph Harbor Freight pond fountain pump, circulating H2O 24./7 through the growbox filters.
Things I have found:
Algae is Your biggest challenge, especially if Your system is out doors.
It will clog Your supply hoses. I use compressed air to blow my system monthly.
I have found that I have to supplement my soil with fertilizer the same way Earthbox recommends.
I have found that I get better and more consistent veggies.
Roots will become a problem once the plants get a certain size. The roots grow and clog the drain port.