Oyster shell granules, easy to put into small Medaka containers, 400ml. When the water becomes acidic, the oyster shells dissolve and maintain a neutral to slightly alkaline pH.
The pH will not rise too high.
Oyster shells have fine cavities that serve as breeding and habitat areas for filtration bacteria.
Mineral addition and, due to the neutralization, oxygen dissolves well into the water, leading to bacterial and microorganism proliferation.
"Precautions" Unwashed product. Please wash thoroughly until the water becomes clear before use.

安心素材: Made from domestically produced oyster shells: O-O- (O-O) specially selected domestic oyster shells use high-quality shells from the Seto Inland Sea.
Ideal water purification material for goldfish, Medaka, and tropical fish tanks, and perfect for stabilizing water quality in aquariums.
Also serves as a filtration material for aquariums, environmentally friendly as it is made from natural materials.

Optimal size and ease of use: Small oyster shells of 4–8mm in size, 400ml quantity, perfect for small tanks and aquariums.
Easy to use not only in Medaka and goldfish tanks but also in other small fish tanks, making it convenient.

Natural pH balance adjustment: Oyster shells naturally dissolve when the water in the tank becomes acidic, adjusting the water quality to neutral or slightly alkaline.
This helps maintain the health of goldfish and Medaka by providing an ideal water quality and prevents excessive alkalinity.
An excellent filtration material to naturally maintain the overall pH balance of the aquarium.

Porous structure promotes filtration bacteria: The porous structure of oyster shells encourages the growth of filtration bacteria and increases oxygen solubility in the tank.
This natural filtration process stabilizes the ecosystem inside the tank, allowing goldfish and Medaka to grow healthier.
Also excellent as a water purification material.

Rich in minerals for water quality improvement: Oyster shells contain abundant calcium and other minerals, supporting the health of fish.
As a result, aquatic creatures like Medaka and goldfish can grow healthily and live longer.
A highly effective water purification product that improves water quality.

Removes oil film and improves transparency: Using oyster shells effectively removes oil film from the tank and maintains clear water.
Water quality improves to the point where the bottom of the tank is visible in about two weeks, making it ideal for those who want a clear tank.

Economical and effective water quality management: Oyster shells allow easy adjustment of quantity, enabling cost-effective water quality control.
Effective even in small amounts, offering excellent cost performance.
Prevents excessive pH fluctuations, stabilizing the environment inside the tank.

Seto Inland Sea quality guarantee: Made from oysters cultivated in the clean waters of the Seto Inland Sea, produced under strict quality control.
Thorough removal of metals and foreign objects using high-reactivity metal detectors and other equipment, ensuring safe use.
A reliable domestically produced oyster shell.

Optimal for plant cultivation: Oyster shells can be used not only in aquariums but also for plant growth.
Useful for soil improvement in succulents like agave and other plants.
Adjusts soil pH balance and supplies calcium, promoting plant health.

Eco-friendly and environmentally conscious choice: Natural oyster shells are an eco-friendly material that improves water quality and soil without using chemical fertilizers.
Provides a sustainable environment in aquariums and gardening, supporting a life in harmony with nature.

2025/06/17 15:15:31#421227e5634177e0658c62bda38f826bc9080e81