high-density fish (meaning you can have many fish in smaller amounts of water), and reproduce rapidly.
If you dont intend to harvest your fish for food, you can simply use gold fish. Gold fish are very dirty fish, so few will feed several plants in an aquaponic garden. I have found that just 2 gold fish will feed a 2x4 flood tray with lettuce, parsley, lemon balm, and watercress all growing green and great with no pH problems at all. If you have too many fish in your aquaponics system, nitrate levels will increase and the pH as well.
If you dont intend to harvest your fish for food, you can simply use gold fish. Gold fish are very dirty fish, so few will feed several plants in an aquaponic garden. I have found that just 2 gold fish will feed a 2x4 flood tray with lettuce, parsley, lemon balm, and watercress all growing green and great with no pH problems at all. If you have too many fish in your aquaponics system, nitrate levels will increase and the pH as well.
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