EcoBio-Block EcoBio-Stone, 15-40 Gallons Tanks, Medium

EcoBio-Block EcoBio-Stone, 15-40 Gallons Tanks, MediumEcoBio-Stones are made of volcanic rock and white cement and are infused with special and effective beneficial bacteria spores, which are activated by water and organic waste. It makes aquarium tanks clear and clean by regularly dispersing beneficial bacteria into your tank. It lasts for 1.5 to 2 years.- Clarifies cloudy water, eliminating odors and creating a healthier environment for fish- Speeds up the nitrogen cycle- Reduces maintenance needs- Keeps sufficient beneficial bacteria in your tank- Can be used in fresh, brackish or salt water tanks- Eco-friendly and safe for all fish species, amphibians, and reptiles Perfect for everyday use. finest materials and excellent craftsmanship ensure long-lasting durability.