The main requirements for an aquaponic system for growing plants with fish are the container or fish tank, the types of fish desired for the aquarium, and bacteria to convert fish waste into fertilizer. Aquaponic systems can be used to grow a variety of plants, including leafy plants, herbs and tomatoes.
Aquaponics is the method of farming with fish. In this agricultural method, fish waste is used to fertilize plants. Waste excreted by fish is moved through the water system to the plants, where they utilize it for nutrients. After utilizing the waste, plants filter clean water back into the aquarium system for fish to live in. The containers where plants are grown should be located in areas that are exposed to sunlight and fresh air.
There are a variety of fish that can be kept for the farming. Common fish like goldfish are acceptable. Water quality is important, so there should be no chlorine in the water. To ensure the water is free from contaminants, either invest in a purifying system or leave water exposed to air for one week to rid it of chlorine. Adding rocks, sponges or gravel from an old aquarium helps facilitate the growth of bacteria.