Volcanic natural substrate for aquascaping.

Key Features:
• Volcanic rock substrate as stable foundation for rock and root wood constructions: dedicated substrate for aquascaping aquariums.
• Basis substrate for natural aquariums: porous volcanic rock ensures water circulation at the bottom. Supplies plant roots with organic plant nutrients.
• Vigorous plant growth: ideal oxygen supply and circulation through open-pored structure. Long-term supply with nutrients and minerals.
• Safe foundation, no slipping: volcanic rock becomes firmly interlocked. Ideally suited for a firm foundation.