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Guemmer-Sand is due to its intense black colour perfect for high contrasts and it increases the natural colours of your plants and fishes in a natural way. Furthermore, the sand is water neutral, which means that the water values do not change undesirably. Thanks to the rounded edges, there is no risk of injury to fish or invertebrates on this substrate. This grain size is good for keeping armored catfishs and other catfishes because they can easily rummage through. Dwarf shrimps can also lift these small grains up so they can get to the food remains. This improves the water conditions of your aquarium in the long term. Nevertheless, the granules are permeable enough to supply aquarium plants with sufficient nutrients.
- Water neutral, black soil
- Grain size: 0,4 - 0,8 mm
- For high contrasts
- No risks of injuries because of its rounded edges/li>
- Perfect for fishes, aquatic invertebrates and plants