WIO Nano Boulder - Elderly

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.

Inventory Accuracy

If this item is at low stock, or you are ordering all or almost all of our current inventory, there may be an inventory discrepency. We will contact you about any issues as soon as possible.

Order Processing

  Please allow 24 to
48 hrs to process your order.  Expect an
email within 48 hrs to let you know your order is on your way.

Store Pickup

  If you choose “Pickup
in Store” at checkout, an email will be sent when your order is ready for
pickup.  Orders can be picked up during
store hours, see our home page for our current hours.  The pick up address is 6637 Easton Rd,
Pipersville, PA 18947

Domestic Shipping Rates

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any, for your order will be calculated and displayed at checkout.