Materials Needed:
- 2-liter plastic bottle
- Airline tubing
- Check valve
- Diffuser
- Yeast
- Sugar
- Water
Instructions:
- Prepare the Bottle: Drill a hole in the bottle cap and insert the airline tubing.
- Mix Ingredients: Fill the bottle with a mixture of water, sugar, and yeast.
- Connect Tubing: Attach the airline tubing to the check valve and diffuser.
- Install in Tank: Place the diffuser in the aquarium and position the bottle outside the tank. The yeast will produce CO2, which will be diffused into the water to benefit your plants.
