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Black Mountain Seiryu Stone is a dramatic limestone variant prized for its bold textures and striking dark coloration. Known for its rugged surfaces, deep grooves, and pale vein-like highlights, this stone creates powerful contrasts in aquascapes. Perfect for rugged nature layouts and Iwagumi-inspired scapes, Black Mountain Seiryu adds depth, stability, and a sense of timeless strength to aquariums, making it one of the most sought-after stones in modern aquascaping.
Origin: Indonesia – Seiryu limestone variant
Water Chemistry Impact: Slightly raises pH and hardness (KH & GH)
Compatibility: Great for neutral to hardwater tanks; safe for Neo shrimp, snails, and community fish
Restrictions: Rinse before use; sand sharp edges; caution with Caridina and other soft-water species
Aquascape Style: Rugged scapes with vein-rich highlights and stable bases
Placement: Midground clusters, dominant centerpiece stones, or balanced Iwagumi groupings
Special Features: Dark coloration with contrasting veins; sharp ridges; creates bold structure
Water: May alter hardness and pH; best suited for neutral to hardwater setups
Tank Size: Suitable for both nano and large aquascapes, depending on stone scale
Substrate Pairing: Contrasts well with light-colored sands and plant-heavy substrates
Design Tip: Use multiple stones in complementary sizes to form balanced triangular compositions
Appearance: Dark limestone with striking white mineral veins
Color: Black to dark gray with pale vein accents
Texture: Rugged, fractured surfaces with sharp details
Impact: Adds bold contrast, depth, and dramatic structure
Preparation: Rinse thoroughly before use; sand sharp edges to protect delicate species
Placement: Position carefully to ensure stability in stacked arrangements
Maintenance: Stable once placed; may develop algae in high-light conditions
Special Tips: Best showcased in Iwagumi layouts where vein patterns contrast against plants and substrate
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.