Vertiminaponics is a system that modifies aquaponics by cultivating fish and vegetables at the same time, making it suitable for urban conditions where land is limited. Fish that can be raised through this technology are all freshwater fish, especially fish that do not require high oxygen availability in water, such as catfish, pomfret, tilapia, and others. This system utilizes fish waste as organic matter or a source of nutrients for the vegetables planted, while the vegetables also serve as a filter for the water needed by the fish.
The vertiminaponics system can be explained in the picture below. The water in the water tank is channeled to the plant bed as a nutrient for the plants as well as a water filter. The first layer of the plant bed is gravel. This gravel must be clean so that the water channel runs smoothly. The function of gravel in this plant is so that the water flow can run smoothly because gravel will create cavities in the plant media. The planting medium is protected by gauze so that it does not dissolve with the flow of water into the water tank. Planting media was made from a mixture of size 3 zeolite stones and vermicompost in a ratio of 1.5 zeolite stones to 1 vermicompost. The planting media layer inside the gauze consists of two layers. The first layer at the base of the gauze is a layer of size 3 zeolite stones about 3 cm high. This layer serves to prevent the dissolution of vermicompost into the water flow. The next layer is a layer of planting media.
This activity was conducted at BPTP Jakarta.