Black lava is of volcanic origin and is characterized by a porous texture, making it lightweight and versatile. Due to its relatively light weight, large structures can be created with it. Plants such as ferns or moss can be attached, and their roots will find good support thanks to the stone's porous structure. An advantage is that black lava does not increase the hardness of aquarium water.

Weight: 12 - 13 kg, approximately 7 pieces.

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