Not exactly research into a fish type but still aquaponics related - hope its okay
Seems the system is unable to render websites properly. The link should go to https://sites.google.com/view/aquaponics-nz/home
Seems the system is unable to render URLs correctly - here is the correct link to my site on aquaponics https://sites.google.com/view/aquaponics-nz/home
THE COMMON GOLDFISH
The production of Farmed fish is controlled by the Ministry for Primary Industries. But the production and keeping of Common Goldfish is not covered in the Notice Specifying Fish Species Which May Be Farmed (Published in the New Zealand Gazette 2012) (Notice No. MPI 102)
Chosen because they are the hardiest and live to 10 to 15 years often reaching up to a foot long, the Common Goldfish are cheap to buy as well as feed. They are considered to be hardy, live in cold water and can tolerate a wide range of pH levels. Common Goldfish are not considered an eating species today, although their ancestors were. Goldfish will eat almost anything including insects and the eggs of other species. If you have plants in your Aquaponic system, the plant roots may need to be weighted down as the fish will nibble at them and most likely dislodge their roots.
The gold fish and plants can be grown sustainably. The fish waste is toxic to the fish but is a rich fertilizer for the plants. The plants absorb the nuturients, purify the water and the system returns the water to the fish.
Permaculture teacher at Agrifutures.