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Dragon Stone, also known as Ohko Stone, is one of the most popular aquascaping rocks, admired for its unique texture and earthy tones. Formed by centuries of natural erosion, its craggy surface and warm brown coloration resemble dragon scales, making it ideal for mountainous layouts, nature-style aquascapes, and dramatic focal points. Its lightweight form and porous surface make it easy to stack and arrange, allowing aquascapers to build landscapes full of character and depth.
Origin: Japan – ancient riverbeds
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: Sharp edges can chip; avoid stacking too high
Aquascape Style: Mountainous layouts; naturalistic aquascapes
Placement: Dramatic centerpiece stone, clustered mountain builds, or accent groupings
Special Features: Lightweight, porous surface, dragon-scale texture
Water: Fully inert; safe for all freshwater setups
Tank Size: Suitable for nano tanks to large-scale displays
Substrate Pairing: Pairs well with soil bases or fine sands for contrast
Design Tip: Use multiple pieces in sloping formations to mimic mountain ridges
Appearance: Craggy stone with dragon-scale surface
Color: Earthy browns and tan with natural variation
Texture: Porous, lightweight, and rugged
Impact: Adds warmth, scale-like texture, and dramatic depth
Preparation: Rinse thoroughly before use to remove sediment
Placement: Secure carefully; avoid unstable stacks due to lightweight nature
Maintenance: Fully stable and inert; porous surface may collect algae
Special Tips: Ideal for nature aquascapes and mountain-inspired Iwagumi layouts
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.