procedure
1. Cut the 5L bottles to exactly as it is shown in the diagram.
2. Aquatic chamber: put about 1 cm height of sand and 2 cm height of gravel to stabilized the aquatic plants such as duckweed and anachronic. Then add 2-3 rocks for the fishes and create a small window at the top of the chamber (use two 5L bottles).
3. Decomposition Chamber: Create holes in the cap of the bottle (randomly distributed holes) and fill the bottom of the decomposition chamber with layer of sand and gravel. Mix the fruit peels, leaves, soil, and etc materials and fill in the decomposition chamber halfway full. Then tape it to the aquatic chamber as shown in the diagram.
4. Create a cap with a hole around the circumference and attach it to the terrestrial chamber.
5. Add add soil up to half of the bottle and plant 10 turnip seeds (when planting plant them 2 cm below the soil surface).
6. Create a water filter by poking holes to the bottom of the 5L bottle that was cut during the creation of the decomposed chamber.
2. Aquatic chamber: put about 1 cm height of sand and 2 cm height of gravel to stabilized the aquatic plants such as duckweed and anachronic. Then add 2-3 rocks for the fishes and create a small window at the top of the chamber (use two 5L bottles).
3. Decomposition Chamber: Create holes in the cap of the bottle (randomly distributed holes) and fill the bottom of the decomposition chamber with layer of sand and gravel. Mix the fruit peels, leaves, soil, and etc materials and fill in the decomposition chamber halfway full. Then tape it to the aquatic chamber as shown in the diagram.
4. Create a cap with a hole around the circumference and attach it to the terrestrial chamber.
5. Add add soil up to half of the bottle and plant 10 turnip seeds (when planting plant them 2 cm below the soil surface).
6. Create a water filter by poking holes to the bottom of the 5L bottle that was cut during the creation of the decomposed chamber.