Bumblebee Sand – Your Ready-to-Scape Mustard Clay Riverbed Substrate Bumblebee Sand brings a warm, clay-mustard glow to your aquascape — inspired by desert soils, pond beds, and wetland silt substrates. Its distinctive color and fine grain mix create a uniquely memorable foundation for natural aquariums, biotopes, and terrariums. Whether used as a full substrate or as a decorative top layer, Bumblebee Sand delivers a clean, earthy aesthetic with smooth texture and high visual impact. Its tiny grains make it ideal for planted layouts and for species that love to sift, dig, and forage naturally. Available Sizes4.4 lb (2 kg)11 lb (5 kg) Each Bag IncludesFine natural mustard-colored sand with a grain mix of 0.004"–0.08" (0.1–2 mm) for a smooth, cohesive texture Why You’ll Love It✓ Unique mustard clay coloration for warm, natural aesthetics✓ High-density color creates bold, memorable scapes✓ Fine grain mix ideal for rooted plants and foraging fish✓ Pre-washed and ready to use✓ pH-neutral — fully safe for all livestock✓ Perfect for aquariums, terrariums, paludariums, and wetland recreations Design TipPair Bumblebee Sand with warm stones, driftwood, and wetland plants to emphasize its clay-rich tones. Use as a top cosmetic layer to create smooth desert, savanna, or marsh-inspired scapes. Specs & CareSand Type: Natural cosmetic sandColor: Mustard clay with warm earthy tonesTexture: Ultra-fine mixed grainsGrain Size: 0.004"–0.08" (0.1–2 mm)Effect on Water: Inert — does not affect pH or hardness Do not rinse (fine grains). Add water gently to avoid disturbance. Skim any floating particles with a net. Safe for all fish, shrimp, snails, plants, amphibians, and terrarium animals.