Dennerle Crystal Quartz Gravel. Perfect bio-functionality and highly attractive as well.
Rounded grains protect bottom-dwelling fish.
This hardness is free shrimp gravel water neutral, light and CO2 resistant. It is used fish-keeping. The gravel is rounded and has a grain size of 0.7 to 1.2 mm.
Pollutant-free shrimp gravel with rounded grains for a minimal risk of injury. Does not change the water values due to its water-neutral and CO2 resistant texture.
Aquarium gravel ideal for shrimp tank and other aquariums. It is used for fish-keeping. This is safe for shrimps and crabs. It is CO2-proof and water neutral. Available in yellow colour.