El Dorado Sand – Your Ready-to-Scape Warm Riverbed Substrate El Dorado Sand brings warmth, color, and natural charm into your aquascape. Inspired by ochre-rich tropical riverbeds and lowland deltas, this natural silica sand blends orange, yellow, and earthy tones to create a vibrant, sunlit foundation ideal for freshwater tanks, biotopes, and terrariums. Its rich grain variation adds depth, texture, and realism, enhancing plants, stones, and driftwood with a naturally glowing palette. Available Sizes4.4 lb (2 kg)11 lb (5 kg) Each Bag IncludesA natural blend of orange–yellow silica sand with mixed grains from 0.004"–0.16" (0.1–4 mm) for authentic riverbed detail Why You’ll Love It✓ Warm ochre tones that brighten and enrich any layout✓ Mixed grains create realistic texture, depth, and natural flow✓ Perfect for tropical riverbeds, deltas, and nature-style aquascapes✓ Pre-washed and ready to use from the bag✓ pH-neutral and completely safe for all livestock✓ Works beautifully in aquariums, terrariums, paludariums, and biotopes Design TipPair El Dorado Sand with warm-toned woods, rounded river stones, or South American plant species for a cohesive, sunlit riverbed effect. Specs & CareSand Type: Natural silica sandColor: Orange-yellow with natural ochre huesTexture: Fine to medium mixed grainsGrain Size: 0.004"–0.16" (0.1–4 mm)Effect on Water: Inert — will not affect pH or hardness Use as a standalone substrate or blend with gravels for added complexity. Due to its fine size, rinsing is not recommended. Add water gently to avoid disturbance. Remove any floating particles with a net. Safe for all fish, shrimp, snails, plants, amphibians, and terrarium animals.