Dennerle gravel diamond black 1– 2mm 10kg
The excellent appearance and perfect biological function of the gravel, which does not harden the water, are rather unique in this combination. It is lightfast and CO2fast, can be used again and again. Due to the iron oxide coloring, quartz gravel is water neutral and guaranteed free of contaminants. The grain size of 1 – 2 mm suits bottom-dwelling fish and reduces the risk of fouling in the gaps. Fine quartz gravel is also very suitable for plants with fine roots. The use of rounded grains greatly reduces the risk of injuring aquarium animals. The very small gaps that exist however provide a perfect installation area for important bacteria. ...More
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