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Hakkai Accent Stones are smaller companion pieces to classic Hakkai Stone, designed for detailing and contrast in aquascapes. Their rugged volcanic texture and dark coloration make them perfect for accent work, fine detailing, and natural finishing touches in layouts that already feature bold hardscape structures.
Origin: Japan – Mount Hakkai volcanic stone
Water Chemistry Impact: Inert and stable; does not affect pH or hardness (KH & GH)
Compatibility: Great for planted tanks; safe for shrimp, snails, and small fish
Restrictions: Not ideal as main structural stone; avoid excessive stacking
Aquascape Style: Detail stones; accents in mountain-style aquascapes
Placement: Foreground detailing, accent clusters, or companion stones
Special Features: Small size for fine detailing; rugged volcanic form
Water: Fully inert and aquarium safe
Tank Size: Works in nano tanks and larger aquascapes as accent pieces
Substrate Pairing: Complements both sand and planted soils
Design Tip: Use to soften transitions between larger stones and substrate
Appearance: Smaller volcanic stones with rugged surfaces
Color: Dark gray to black tones
Texture: Rough, fractured, volcanic detail
Impact: Enhances realism and cohesion in layouts by adding finishing touches
Preparation: Rinse thoroughly before use
Placement: Position carefully as detail stones; not meant for structural stacking
Maintenance: Stable and inert; small surfaces may collect algae in bright tanks
Special Tips: Ideal for balancing layouts and creating smooth transitions
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.