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Black Lava Rock Cave combines the dramatic texture of volcanic stone with the practical design of a natural shelter. Carved from lightweight, porous lava rock, each piece provides both a bold aquascaping feature and a functional refuge for fish and shrimp. Its rough volcanic surface and deep black coloration add intensity to layouts, while the hollow interior creates safe hiding spots that reduce stress in aquarium inhabitants. Ideal for modular builds and volcanic ridge-inspired aquascapes, this rock cave enhances both beauty and function in the aquarium.
Origin: Indonesia – West Java volcanic belt
Water Chemistry Impact: Inert and stable; does not affect pH or hardness (KH & GH)
Compatibility: Great for neutral to hardwater tanks; safe for Neo shrimp, snails, and community fish
Restrictions: Rinse vigorously and pre-soak; trapped air may cause initial float
Aquascape Style: Modular shelter builds; volcanic ridge-line aesthetics
Placement: Use as a centerpiece cave, grouped structures, or combined with other lava rock
Special Features: Natural shelter, porous volcanic surface, shrimp safe
Water: Completely inert and aquarium-safe; does not alter water parameters
Tank Size: Suitable for nano to large aquariums; caves scale well in modular setups
Substrate Pairing: Works well with sand, gravel, or planted substrates
Design Tip: Combine multiple caves with loose lava rock to create volcanic cliff habitats
Appearance: Hollowed volcanic rock with rough, porous surfaces
Color: Deep black to charcoal gray
Texture: Rough and lightweight with air pockets and openings
Impact: Provides both striking aesthetics and functional shelter
Preparation: Rinse thoroughly and pre-soak before use to release trapped air and prevent floating
Placement: Position securely on the substrate; ensure openings are accessible for fish and shrimp
Maintenance: Fully inert; porous surface may collect algae or debris over time
Special Tips: Perfect for shy fish and shrimp colonies that need safe hiding spaces
We ship orders within the contiguous United States. Ready-to-ship orders are processed within 1-3 business days. Please email us regarding the processing time on custom orders.