Explore aquarium rocks, aquascaping stone and reef rock at The Tech Den Australia. Compare natural freshwater hardscape, shaped marine rock and rock-look ornaments, with individual pieces, weighed portions, bags and boxed sets listed separately.

Choose rock for your aquascape

• Freshwater hardscape: Aqua Natural Seiryu, Dragon Rock, lava rock and Rosy Cloud, alongside White Aurum, Texas Holey Rock, decorative stones and fish spawning stones.
• Marine and reef rock: Carib Sea Life Rock base, branch, shelf, arch and tree designs, Java Reef Rock, Aquaforest synthetic rock and Dalua Marco foundation and shelf options.
• Decorative alternatives: Aqua One basalt-look ornaments, Pet Worx preformed resin aquascapes and aquavitro ceramic hides offer different materials and shapes from natural rock.
• Related supplies: Dymax stones, Jurassic Natural decor stones, URS frog rocks, Dalua frag-mount rubble and aquascaping powder, plus PondMAX rock-look ponds and cascades, have their own intended uses.

Check materials, sizes and purchasing options

Choose each product for your aquarium type and intended water chemistry. Do not assume every stone is chemically neutral or suitable for every freshwater, reef or animal setup. Follow the individual preparation instructions and check dimensions, pack weights and whether the price is per piece, per 100g or per pack. Natural pieces vary in shape and appearance; rock sold with bacteria does not replace checking that an aquarium is ready for livestock.

Many loose aquascaping and reef rocks are marked for in-store purchase or pickup only and cannot be delivered. Selected heavy bags and boxes carry additional delivery charges, and some products have delivery-area restrictions. Check the product listing before ordering, particularly large reef arches, Java Reef Rock and PondMAX pickup-only items.