Hydra Aquatics Special Seiryu Stone – 25 lbs. – Popular stone used in aquarium hardscapes – Ranges from deep gray-blue to blackish gray with white calcite veins – Layered appearance – May raise pH, GH, or KH slightly – Shrimp safe – Cleaned and sterilized Hydra Aquatics’ Special Seiryu Stone is one of the most popular stones used in aquarium hardscapes. The stone ranges from deep gray-blue to blackish gray with white calcite veins, creating a lovely contrast. This stone has a layered appearance, giving it a unique look. Seiryu Stone may raise pH, GH, or KH slightly and is shrimp safe. Recommendation: Rinse stones prior to use. Read More
