Manten rock (Ancient stone)

Price per kg: $13
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Product Name:
Ancient Manten Rock

Aquascape Material Detail:
Natural weathered aquascaping stone formed from ancient sediment layers

Japanese name:
万天石 (Manten-seki)

Chinese name:
万天石

Type: (Rock / Wood / Gravel / Sand)
Rock

Color tone: (Dark grey / Brown / Reddish / Mixed / etc.)
Dark grey to charcoal with light mineral veins

Texture: (Smooth / Sharp / Layered / Porous / Rough)
Layered, rough surface with natural crevices

Density: Dense (Density rating: 4.5 / 5)

Weight guide: (Light / Medium / Heavy for its size)
Heavy for its size

Water parameter effect:
• pH influence: Minimal
• Hardness (GH/KH) impact: Slight

Shrimp safe: Yes
Fish safe: Yes

Pre-treatment needed: (Rinse / Soak / Boil wood / None)
Rinse

Best used for:
Nature style / Iwagumi / Hardscape base / Shrimp tank

Suitable tank size: (Nano / Medium / Large tanks)
Medium / Large tanks

Stacking stability: Moderate

Long description:
Ancient Manten Rock is a premium aquascaping stone highly sought after for nature aquarium layouts, especially Iwagumi and natural style aquascapes. Its dark grey to charcoal coloration with subtle mineral veins creates strong visual contrast against green aquatic plants, making it ideal for creating dramatic mountain-like hardscape compositions. The layered texture and weathered surface add depth, realism, and scale to aquariums, closely mimicking natural landscapes found in river valleys and rocky terrains. Due to its high density and solid structure, this aquascape rock provides excellent stability for building terraces, cliffs, and structured hardscape foundations in planted tanks. It has minimal impact on pH and only a slight influence on water hardness, making it safe for most freshwater fish and shrimp when properly rinsed before use. Ancient Manten Rock is a top choice among aquascapers looking for a bold, natural, and professional hardscape material that enhances plant growth visuals and overall aquascape depth.

Other notes: Does not release tannins

Aquascaping style compatibility: Example: Excellent for Iwagumi, nature style, and mountain-inspired aquascape layouts

Aquascaping difficulty: Intermediate

Edge type: Natural sharp

Preparation time: Ready to use after rinsing