Hydra Aquatics Black Mountain Seiryu Stone – 25 lbs. – Beautiful, black variation of Seiryu stone – Darker gray color with blueish tone – Craggy texture with lots of details – May raise pH, GH, or KH slightly – Cleaned and sterilized Hydra Aquatics’ Black Mountain Seiryu Stone is a beautiful, black variation of Seiryu stone. This stone has a darker gray color with blueish tone compared to regular Seiryu stone’s light gray color. The stone has a craggy texture with lots of details. Black Mountain Seiryu Stone may raise pH, GH, or KH slightly. Recommendation: Rinse stones prior to use. Read More
