The Bumblebee Boulder is a unique stone that brings warmth and a new impression to the aquascaping and terrarium world. Its natural yellowish ochre color creates a beautifully smooth texture with rich warm palette tones, making it perfect for creating a harmonious scape. Match it with Bumblebee gravels and sands like Bumblebee, El Dorado, or Tigris to achieve a natural look that blends perfectly with your environment. The Bumblebee Boulder is available in mix sizes from 5 to 30 cm and is a sedimentary boulder. It may raise pH and hardness slightly, but regular water changes are enough to keep the hardness under control. This boulder is perfect for creating a natural-looking environment in your aquarium or terrarium. Key Points Natural yellow ochre color with smooth textures and warm tones Perfect for creating a harmonious warm scape High impact result due to its richness in shapes and colors from the same palette Pairs with Bumblebee gravels and sands including Bumblebee, El Dorado, and Tigris Characteristics Type: Sedimentary boulder Color: Yellow ochre Texture: Smooth with slight texture Stone size: Mix sizes from 5 to 30 cm Water Hardness: 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.