Eco-bottle consists of transparent glass balls, which are filled with shrimp, algae, bacteria, filtered water of marine eco-bottle, pebbles and air. There are pebbles, shrimp, algae and bacteria in the ecological bottle. About two-thirds of the water and one-third of the air in the ecological bottle represent the simple ecological cycle of the earth. Under the irradiation of sunlight, carbon dioxide in the water allows algae to carry out photosynthesis and produce oxygen. Shrimp breathes oxygen, releases carbon dioxide, and feeds on algae and bacteria to discharge waste. Bacteria decompose shrimp excrement into inorganic nutrients for algae to use, so bacteria become decomposers. Therefore, the food and gas in the ecological bottle can be recycled continuously. The ecological bottle is sealed, so you can't add any food or gas. The only thing that can enter the system is light, and the whole system is also driven by light.
Fish are easy to die on the first day after being put into an ecological bottle, and most of them are very sensitive to the sudden change of water temperature. It is easy to die if you suddenly switch to water with different temperatures. Put a plastic bag in the original water tank where the fish is located, transfer the fish to the plastic bag, then transfer the water and fish to the ecological bottle, and put the fish into the ecological bottle after the fish has adapted for a period of time.
The sunshine amount of ecological bottle is directly related to the growth rate of green algae. In a balanced ecological bottle, the amount of green algae added every day should be similar to that of aquatic organisms such as small fish and shrimp. In addition to small fish, shrimp and snails, we can replace the creatures in the ecological bottle with water snails. Generally, one or two water snails can be put in a 20-liter bottle. Water snails mainly feed on green algae, which is a green film-like substance growing on the bottle wall.
The number of fish preserved in ecological bottles is directly related to the volume of water in ecological bottles and the amount of oxygen available to fish in water. If you keep goldfish, you can put two or three adult goldfish every 4 liters of water. If there are fish floating on the surface of the water and constantly "panting", it means that there is not enough dissolved oxygen in the water, or there is something wrong with the water quality, or too many fish are put in.