Eco-bottle is "an artificially simulated micro-ecosystem formed by putting a small number of plants, animals and other abiotic substances that feed on these plants into a closed light-mouth bottle". The specific manufacturing method is as follows:

1. Materials and appliances?

Aquatic plants (such as Sargassum), aquatic animals (such as Charophyta, Ampullaria, Goldfish, Loach, etc. ), water, sand/fine stones, glass bottles (such as specimen bottles, large test tubes or medical glucose injection bottles), vaseline. ?

Second, the method steps?

① Bottle treatment: wash the specimen bottles and scald the bottles and caps with boiling water. When you use it for the first time, you should clean it first. But you can't wash it with soap or detergent. Otherwise, there will be chemical residues such as soap in plastic bottles, which will bring harm to the survival of aquatic organisms. It is recommended to wash with hot water and add some baking soda if necessary.

You can also put a filter at the bottom of the bottle. In this way, the water in the bottle will not become turbid quickly because of the proliferation of bacteria, and it is not necessary to change the water in the bottle frequently. Of course, it doesn't matter if you don't let go.

② Sand release and water injection: put a layer of silt at the bottom of the bottle and fill half the bottle with water from natural waters. Or put 1cm thick sand in the bottle instead of silt, and then add water to 4/5 of the bottle volume. If natural water is not available, overnight water can be used instead. )

(3) Feeding organisms: After the water in the bottle is clarified, feed aquatic plants and aquatic animals. (It should be noted here that plants added to ecological bottles are generally algae. ) ecological bottles filled with water and planted with aquatic plants usually have to wait a day or two for some turbidity in the water to settle down before they can be put into aquatic animals.

(4) capping and sealing: capping the bottle and coating vaseline around the bottle cap for sealing. ?

⑤ Labeling: Label the bottle, indicating the date of production and the name of the manufacturer.

⑥ Place the bottle: Place the ecological bottle on the sunny window sill (don't move it at will in the future).

Note: The sunlight exposure of ecological bottles is directly related to the growth rate of green algae. In a balanced ecological bottle, the daily increase of green algae should be similar to that of water snails and other organisms.