WIO McDonald Lake Boulder Stone Kit is a rare and unique stone — its name a tribute to the biggest lake in Glacier National Park, Montana, USA. It is a colorful boulder that can add a stunning visual appeal to your aquarium or terrarium, creating a unique riverbed impression. With colors ranging from dark red to maroon, and from green to blue and black, it adds a beautiful and distinctive touch to any aquascape.

The vivid colors of McDonald Lake stones owe their character to the iron content in sedimentary pebble rocks and the degree of its oxidation. The rocks were formed over millions of years under different conditions, resulting in the beautiful palette seen today. McDonald Stones were then ground into smooth colored pebbles by giant ice blocks during the Ice Age, which were subsequently carried into the valley by streams of meltwater.

McDonald Lake Boulder Stone Kit is available in mix sizes from 5 to 30 cm and can be complemented with McDonald Nano Boulders. Some boulders may raise pH and hardness slightly; regular water changes are enough to keep hardness under control.

Key Points

• Rare and unique colorful boulders
• Colors range from dark red to maroon, and from green to blue and black
• Adds a stunning and unique riverbed impression to any aquascape
• Also available in Nano Boulder and Gravel formats

Characteristics

• Type: Natural mix stones from different origins
• Color: Dark red, maroon, green, blue, and black
• Texture: Smooth with natural color gradients
• Stone size: Mix sizes from 5 to 30 cm
• Water Hardness: Some boulders may raise pH and hardness slightly; regular water changes keep hardness under control

Availability at Cuboid Nature Aquarium

• Nano Box — 5 kg (11 lb): WIO's curated size mix, hand-selected assortment of stones from 5 to 30 cm
• Box — 11 kg (24 lb): WIO's curated size mix, hand-selected assortment of stones from 5 to 30 cm
• In-Store: Visit us in Pipersville, PA to hand-pick individual stones by the pound — choose exactly the pieces and sizes you want for your layout

Usage

• Suitable for both aquatic and terrarium environments
• Rinse rocks and stones with water before use; use a brush to clean before introducing to the aquarium
• Avoid placing rocks directly on the glass — place substrate or WIO LandForms beneath the hardscape first
• Always secure stones, especially when stacking; use WIO ScapeBound to prevent movement during maintenance
• Position stones a few centimeters/inches away from aquarium glass walls to facilitate maintenance
• Control any alterations in pH and kH by regular water changes with osmotic or soft water, or by using a water softener if necessary
• Safe for fish, shrimps, and other aquatic animals

Available from Cuboid Nature Aquarium — Authorized Retailer for WIO.