WIO Elderly Boulder Nano Stone brings natural river character, rich texture, and a cold, peaceful color palette to your scape — rare miniature river boulders with stripes, depth, and a stunningly natural rolling-stone riverbed impression, perfectly scaled for nano tanks.

Elderly Boulder Nano Stone carries the same rich textured character as the full-size Elderly Boulder — an igneous and sedimentary river boulder formed over time into pieces with distinctive stripes and a cold, calm palette. Each piece creates an impressively natural atmosphere, adding depth and dimension even in the most compact layouts. Their character and visual richness make them a highly sought-after choice for nano riverscapes and biotopes.

Sized between 3 and 10 cm, Elderly Boulder Nano Stones are ideal for nano tanks under 40L. They may raise pH and hardness slightly; regular water changes are enough to keep hardness under control. Pre-washed and ready to use. Pair with Elderly Gravel and Heaven Sand for stunning contrast.

Key Points

• Color: Cold color palette with rich textures and stripes
• Nano Scale: Sized 3–10 cm, ideal for tanks under 40L / 10 gal
• River Boulder: Natural rolling-stone riverbed impression
• Rich Texture: Detailed surface with stripes and unique character
• Pre-Washed: Clean and ready to use, no soaking required
• Water Chemistry: May raise pH and hardness slightly
• Versatile Use: Ideal for aquariums, terrariums, paludariums, and bowls
• Safe for fish, shrimp, and amphibians
• Pairing Tip: Pair with Elderly Gravel and Heaven Sand for stunning contrast

Characteristics

• Type: Igneous and sedimentary river boulder
• Color: Cold color palette with stripes
• Texture: Rich and textured with stripes and natural character
• Stone size: 3–10 cm
• Water Hardness: May raise pH and hardness slightly; regular water changes maintain stability

Availability at Cuboid Nature Aquarium

• 2 kg Bag: Assorted mix of river boulders, 3–10 cm

Usage

• Rinse briefly before use to remove any transport dust — pre-washed and ready for direct placement
• Use larger boulders as anchors; blend smaller pieces to create natural banks and eddies
• Place over substrate or WIO LandForms — avoid direct contact with glass
• Use WIO ScapeBound to secure if needed
• Ideal for riverbed biotopes and natural stream compositions; combine with wood for a very natural look
• Control any alterations in pH and kH by regular water changes with osmotic or soft water
• Safe for fish, shrimps, and other aquatic animals

Available from Cuboid Nature Aquarium — Authorized Retailer for WIO.