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What is an IAVS? It is an Integrated Aqua-Vegeculture System. An IAVS is a way to grow food and raise fish together in one system. How Does It Work? First, nitrosomas bacteria was added to the hydroponic beds. It lives on the rocks. The nitrosomas bacteria is responsible for breaking down the ammonia in the fish waste. The ammonia is broken down into nitrite. Then nitrobacter bacteria breaks down the nitrite to nitrate. The nitrate is the plant food for the plants. Germination Table where the seeds begin to grow. The seeds grow here for 3 weeks. This is where the Bibb lettuce is planted. It is grown hydroponically. It is not part of the IAVS system. After plants have been growing in the germination table for 3 weeks, they are transplanted to the hydroponic beds. We are raising tilapia. This type of fish was chosen because they can live in a wide variety of water conditions. Here students are looking after the tilapia in the large fish tank. Here we planted Romaine lettuce, Bibb lettuce, tomatoes, and cucumbers. So, what is the best part of an IAVS? Getting to eat the food!