sera Gravel White 1-3 mm 3 L

The gravel is CO2 resistant and water-neutral, meaning it does not affect the water values and does not colour the water. Thanks to the rounded grit, it is suitable for keeping bottom fish such as catfish that continuously search the soil for food. The optimal amount of gravel can be determined as follows: A (cm) x B (cm) x C (cm) / 1000 = litre number of sera gravel. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.