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At AquaCave, we offer some of the best selection & best prices on Sand and substrate for your marine, reef, and freshwater aquarium.

45 of 45 Items
  • Brightwell Aquatics KoraLagoon Substrate, 27 kg. / 60 lb.

    Brightwell Aquatics

    Brightwell Aquatics KoraLagoon Substrate, 27 kg. / 60 lb.

    Brightwell Aquatics KoraLagoonSubstrat Aragonite RefugiumSubstrateA blend of high-purity aragonite particulate grades to simulate the natural substrate particle profile of tropical reef lagoonsBrightwell Aquatics KoraLagoon Substrate, 27 kg. / 60 lb...

    $319.95
  • MIRACLE MUD, Marine 10 lb. by EcoSystem Aquarium

    EcoSystem Aquarium

    MIRACLE MUD, Marine 10 lb. by EcoSystem Aquarium

    MIRACLE MUD, Marine 10 lb. by EcoSystem Aquarium Miracle Mud is a product of EcoSystem Aquarium® that has been carefully formulated to include all the essential trace elements, minerals, and components necessary to maintain a successful aquarium...

    $59.99
  • MIRACLE MUD 2, FRESHWATER 10 lb. by EcoSystem Aquarium

    EcoSystem Aquarium

    MIRACLE MUD 2, FRESHWATER 10 lb. by EcoSystem Aquarium

    MIRACLE MUD 2, FRESHWATER 10 lb. by EcoSystem Aquarium Miracle Mud is a product of EcoSystem Aquarium® that has been carefully formulated to include all the essential trace elements, minerals, and components necessary to maintain a successful...

    $59.95
  • Fluval Bio Stratum 17.6 lbs. Fluval Bio Stratum 17.6 lbs. Fluval Bio Stratum 17.6 lbs. Fluval Bio Stratum 17.6 lbs. Fluval Bio Stratum 17.6 lbs.

    Fluval

    Fluval Bio Stratum 17.6 lbs.

    Fluval Bio Stratum 17.6 lbs. Fluval's All-New Bio-Stratum is infused with BENEFICIAL "BIOACTIVE" BACTERIA that will break down waste, kickstart the nitrogen cycle and rapidly reduce ammonia levels to help stabilize water conditions in new aquariums and...

    $49.99
  • Fluval Plant and Shrimp Stratum 17.6 lb.

    Fluval

    Fluval Plant and Shrimp Stratum 17.6 lb.

    Fluval Plant and Shrimp Stratum 17.6 lb. Collected from the mineral rich foothills of the famous Mount Aso Volcano in Japan, Fluval Stratum is the ideal substrate for stimulating the growth of aquatic plants in freshwater aquariums. Plant...

    $49.95
  • CaribSea Mineral-Mud - Refugium Media, 1 gal.

    CaribSea

    CaribSea Mineral-Mud - Refugium Media, 1 gal.

    Quick Facts- Ideal for refugiums- very clean- compatible with soft burrowing animalsClean and effective refugium substrateA unique blend of sediments that duplicate tropical fringing coastal mangrove environments. Its particles are in a size range...

    $39.95
  • MIRACLE MUD 2, FRESHWATER 5 lb. by EcoSystem Aquarium

    EcoSystem Aquarium

    MIRACLE MUD 2, FRESHWATER 5 lb. by EcoSystem Aquarium

    MIRACLE MUD 2, FRESHWATER 5 lb. by EcoSystem Aquarium Miracle Mud is a product of EcoSystem Aquarium® that has been carefully formulated to include all the essential trace elements, minerals, and components necessary to maintain a successful...

    $39.95
  • MIRACLE MUD, Marine 5 lb. by EcoSystem Aquarium

    EcoSystem Aquarium

    MIRACLE MUD, Marine 5 lb. by EcoSystem Aquarium

    MIRACLE MUD, Marine 5 lb. by EcoSystem Aquarium Miracle Mud is a product of EcoSystem Aquarium® that has been carefully formulated to include all the essential trace elements, minerals, and components necessary to maintain a successful aquarium...

    $39.95
  • Fluval Bio Stratum 8.8 lbs. Fluval Bio Stratum 8.8 lbs. Fluval Bio Stratum 8.8 lbs. Fluval Bio Stratum 8.8 lbs. Fluval Bio Stratum 8.8 lbs.

    Fluval

    Fluval Bio Stratum 8.8 lbs.

    Fluval Bio Stratum 8.8 lbs. Fluval's All-New Bio-Stratum is infused with BENEFICIAL "BIOACTIVE" BACTERIA that will break down waste, kickstart the nitrogen cycle and rapidly reduce ammonia levels to help stabilize water conditions in new aquariums and...

    $34.99
  •  CaribSea Arag-Alive Bahamas Oolite Live Sand, 20 lb.   CaribSea Arag-Alive Bahamas Oolite Live Sand, 20 lb.

    CaribSea

    CaribSea Arag-Alive Bahamas Oolite Live Sand, 20 lb.

    Live Aragonite Sand You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed from CaribSea’s cooperation with public aquariums and zoological parks where...

    Was: $38.95
    Now: $33.11
  •  CaribSea Arag-Alive Bimini Pink Live Sand, 20 lb.   CaribSea Arag-Alive Bimini Pink Live Sand, 20 lb.

    CaribSea

    CaribSea Arag-Alive Bimini Pink Live Sand, 20 lb.

    Live Aragonite Sand You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed from CaribSea’s cooperation with public aquariums and zoological parks where...

    Was: $38.95
    Now: $33.11
  •  CaribSea Arag-Alive Fiji Pink Live Sand, 20 lb.   CaribSea Arag-Alive Fiji Pink Live Sand, 20 lb.   CaribSea Arag-Alive Fiji Pink Live Sand, 20 lb.

    CaribSea

    CaribSea Arag-Alive Fiji Pink Live Sand, 20 lb.

    Live Aragonite Sand You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed from CaribSea’s cooperation with public aquariums and zoological parks...

    Was: $38.95
    Now: $33.11
  •  CaribSea Arag-Alive Hawaiian Black Live Sand, 20 lb.   CaribSea Arag-Alive Hawaiian Black Live Sand, 20 lb.

    CaribSea

    CaribSea Arag-Alive Hawaiian Black Live Sand, 20 lb.

    Live Aragonite Sand You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed from CaribSea’s cooperation with public aquariums and zoological parks...

    Was: $38.95
    Now: $33.11
  •  CaribSea Ocean Direct - Oolite Live Sand, 20 lb.   CaribSea Ocean Direct - Oolite Live Sand, 20 lb.

    CaribSea

    CaribSea Ocean Direct - Oolite Live Sand, 20 lb.

    Ocean Direct™ - This substrate is different than all other live sand products on the market. Ocean Direct™ utilizes “Sea Breathe” technology, which preserves real live sand with its own original bacteria. Every breathable bag of Ocean Direct™ is alive...

    Was: $38.95
    Now: $33.11
  •  CaribSea Ocean Direct - Original Grade Live Sand, 20 lb.   CaribSea Ocean Direct - Original Grade Live Sand, 20 lb.

    CaribSea

    CaribSea Ocean Direct - Original Grade Live Sand, 20 lb.

    Ocean Direct™ - This substrate is different than all other live sand products on the market. Ocean Direct™ utilizes “Sea Breathe” technology, which preserves real live sand with its own original bacteria. Every breathable bag of Ocean Direct™ is alive...

    Was: $38.95
    Now: $33.11
  • Caribsea Coralline Coral Style Substrate, 20 lb.

    CaribSea

    Caribsea Coralline Coral Style Substrate, 20 lb.

    Caribsea Coralline Coral Style Substrate, 20 lb. Premium-quality, natural, dramatic color and texture marine aquarium gravel adds fun and beauty to your finned or scaly friends’ environment. Looks great in both indoor tanks and outdoor ponds;...

    Was: $38.95
    Now: $33.11
  • Caribsea Eco-Complete Planted Aquarium, Black 20 lbs. Caribsea Eco-Complete Planted Aquarium, Black 20 lbs. Caribsea Eco-Complete Planted Aquarium, Black 20 lbs.

    CaribSea

    Caribsea Eco-Complete Planted Aquarium, Black 20 lbs.

    Caribsea Eco-Complete Planted Aquarium, Black 20 lbs. Keep your aquarium plants growing and thriving with the CaribSea Eco-Complete Planted Aquarium Substrate. This ready-to-use formula contains basaltic volcanic soil which contains iron, calcium,...

    Was: $38.95
    Now: $33.11
  • Caribsea Eco-Complete Planted Aquarium, Red 20 lbs. Caribsea Eco-Complete Planted Aquarium, Red 20 lbs. Caribsea Eco-Complete Planted Aquarium, Red 20 lbs.

    CaribSea

    Caribsea Eco-Complete Planted Aquarium, Red 20 lbs.

    Caribsea Eco-Complete Planted Aquarium, Red 20 lbs. Keep your aquarium plants growing and thriving with the CaribSea Eco-Complete Planted Aquarium Substrate. This ready-to-use formula contains basaltic volcanic soil which contains iron, calcium,...

    Was: $38.95
    Now: $33.11
  • Caribsea EcoComplete African Cichlid Black 20 lbs. Caribsea EcoComplete African Cichlid Black 20 lbs. Caribsea EcoComplete African Cichlid Black 20 lbs.

    CaribSea

    Caribsea EcoComplete African Cichlid Black 20 lbs.

    Caribsea EcoComplete African Cichlid Black 20 lbs. The secret to successfully keeping African Cichlids begins with Eco-Complete African Cichlid Substrates. These mineralogically complete substrates contain aragonite to maintain the high pH African...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Blue Ridge 20 lbs. Caribsea Super Naturals - Blue Ridge 20 lbs. Caribsea Super Naturals - Blue Ridge 20 lbs.

    CaribSea

    Caribsea Super Naturals - Blue Ridge 20 lbs.

    Caribsea Super Naturals - Blue Ridge 20 lbs. Create a supernatural experience by re-creating the natural world in your home. Enjoy a piece of the Rio Negro as it winds its way through dark and brooding jungles. Own a sliver of the sunlit Sri Lankan...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Jelly Beans 20 lbs. Caribsea Super Naturals - Jelly Beans 20 lbs. Caribsea Super Naturals - Jelly Beans 20 lbs.

    CaribSea

    Caribsea Super Naturals - Jelly Beans 20 lbs.

    Caribsea Super Naturals - Jelly Beans 20 lbs. Create a supernatural experience by re-creating the natural world in your home. Enjoy a piece of the Rio Negro as it winds its way through dark and brooding jungles. Own a sliver of the sunlit Sri Lankan...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Peace River 20 lbs. Caribsea Super Naturals - Peace River 20 lbs.

    CaribSea

    Caribsea Super Naturals - Peace River 20 lbs.

    Caribsea Super Naturals - Peace River 20 lbs. CaribSea pre-washed Super Naturals are designed with your success and ease of use in mind. Sizes and colors have been carefully selected to help you create a natural underwater environment like those of the...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Rio Grande 20 lbs. Caribsea Super Naturals - Rio Grande 20 lbs.

    CaribSea

    Caribsea Super Naturals - Rio Grande 20 lbs.

    Caribsea Super Naturals - RIo Grande 20 lbs. CaribSea pre-washed Super Naturals are designed with your success and ease of use in mind. Sizes and colors have been carefully selected to help you create a natural underwater environment like those of the...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Snowy River 20 lbs. Caribsea Super Naturals - Snowy River 20 lbs.

    CaribSea

    Caribsea Super Naturals - Snowy River 20 lbs.

    Caribsea Super Naturals - Snowy River 20 lbs. Create a supernatural experience by re-creating the natural world in your home. Enjoy a piece of the Rio Negro as it winds its way through dark and brooding jungles. Own a sliver of the sunlit Sri Lankan...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Sunset Gold 20 lbs. Caribsea Super Naturals - Sunset Gold 20 lbs. Caribsea Super Naturals - Sunset Gold 20 lbs.

    CaribSea

    Caribsea Super Naturals - Sunset Gold 20 lbs.

    Caribsea Super Naturals - Sunset Gold 20 lbs. Create a supernatural experience by re-creating the natural world in your home. Enjoy a piece of the Rio Negro as it winds its way through dark and brooding jungles. Own a sliver of the sunlit Sri Lankan...

    Was: $38.95
    Now: $33.11
  • Caribsea Super Naturals - Torpedo Beach 20 lbs. Caribsea Super Naturals - Torpedo Beach 20 lbs. Caribsea Super Naturals - Torpedo Beach 20 lbs. Caribsea Super Naturals - Torpedo Beach 20 lbs.

    CaribSea

    Caribsea Super Naturals - Torpedo Beach 20 lbs.

    Caribsea Super Naturals - Torpedo Beach 20 lbs. Create a supernatural experience by re-creating the natural world in your home. Enjoy a piece of the Rio Negro as it winds its way through dark and brooding jungles. Own a sliver of the sunlit Sri Lankan...

    Was: $38.95
    Now: $33.11
  • CaribSea Super Naturals Essentials - Zen Garden, 20 lb. CaribSea Super Naturals Essentials - Zen Garden, 20 lb.

    CaribSea

    CaribSea Super Naturals Essentials - Zen Garden, 20 lb.

    CaribSea Super Naturals Essentials - Zen Garden, 20 lb. Help your fish feel right at home with CaribSea Super Naturals Zen Garden Aquarium Gravel. This gravel contains a variety of neutral-color stones to mimic your fish’s natural environment. It’s...

    Was: $38.95
    Now: $33.11
  • CaribSea Super Naturals Moonlight Sand, 20 lb. CaribSea Super Naturals Moonlight Sand, 20 lb. CaribSea Super Naturals Moonlight Sand, 20 lb.

    CaribSea

    CaribSea Super Naturals Moonlight Sand, 20 lb.

    CaribSea Super Naturals Moonlight Sand, 20 lb. Create a supernatural experience by re-creating the natural world in your home. Enjoy a piece of the Rio Negro as it winds its way through dark and brooding jungles. Own a sliver of the sunlit Sri Lankan...

    Was: $38.95
    Now: $33.11
  • Marco Rock Aragonite Sand, 22.5 lbs. Bag

    Marco Rocks

    Marco Rock Aragonite Sand, 22.5 lbs. Bag

    Marco Rock Aragonite Sand, 22.5 lbs. Bag The goal with MarcoRocks Bahama Aragonite Sand was to recreate what you would normally find on the floor of a coral reef. It is 100% natural and will give a beautiful natural white sand color under most...

    Was: $38.95
    Now: $33.11
  • Fluval Plant and Shrimp Stratum 8.8 lb.

    Fluval

    Fluval Plant and Shrimp Stratum 8.8 lb.

    Fluval Plant and Shrimp Stratum 8.8 lb. Collected from the mineral rich foothills of the famous Mount Aso Volcano in Japan, Fluval Stratum is the ideal substrate for stimulating the growth of aquatic plants in freshwater aquariums. Plant roots...

    $29.95
  • Brightwell Aquatics KoraLagoon Substrate, 1.4 kg. / 3.1 lb.

    Brightwell Aquatics

    Brightwell Aquatics KoraLagoon Substrate, 1.4 kg. / 3.1 lb.

    Brightwell Aquatics KoraLagoonSubstrat Aragonite RefugiumSubstrateA blend of high-purity aragonite particulate grades to simulate the natural substrate particle profile of tropical reef lagoonsBrightwell Aquatics KoraLagoon Substrate, 1.4 kg. / 3.1 lb. A...

    $26.95
  • Caribsea Samurai Soil 9 lbs. Caribsea Samurai Soil 9 lbs.

    CaribSea

    Caribsea Samurai Soil 9 lbs.

    Caribsea Samurai Soil 9 lbs. The ideal substrate for shrimp and planted aquaria This unique, uniformly graded material fits the pH and mineral requirements of the most sensitive freshwater fauna and flora, without the muddy texture and crumbling...

    Was: $29.95
    Now: $25.46
  • Fluval Bio Stratum 4.4 lbs. Fluval Bio Stratum 4.4 lbs.

    Fluval

    Fluval Bio Stratum 4.4 lbs.

    Fluval Bio Stratum 4.4 lbs. Promotes healthy plant development, growth and vibrant color. Infused with nitrifying bacteria that help to break down waste and kickstart the nitrogen cycle. Helps to reduce ammonia levels and stabilize water in new...

    $19.95
  • Fluval Plant and Shrimp Stratum 4.4 lb.

    Fluval

    Fluval Plant and Shrimp Stratum 4.4 lb.

    Fluval Plant and Shrimp Stratum 4.4 lb. Collected from the mineral rich foothills of the famous Mount Aso Volcano in Japan, Fluval Stratum is the ideal substrate for stimulating the growth of aquatic plants in freshwater aquariums. Plant roots...

    $19.95
  • MIRACLE MUD Freshwater, 2 lbs. by EcoSystem Aquarium MIRACLE MUD Freshwater, 2 lbs. by EcoSystem Aquarium MIRACLE MUD Freshwater, 2 lbs. by EcoSystem Aquarium MIRACLE MUD Freshwater, 2 lbs. by EcoSystem Aquarium

    EcoSystem Aquarium

    MIRACLE MUD Freshwater, 2 lbs. by EcoSystem Aquarium

    MIRACLE MUD Freshwater, 2 lbs. by EcoSystem Aquarium Miracle Mud is a product of EcoSystem Aquarium® that has been carefully formulated to include all the essential trace elements, minerals, and components necessary to maintain a successful aquarium...

    $19.95
  • Caribsea Samurai Soil 3.5 lbs. Caribsea Samurai Soil 3.5 lbs.

    CaribSea

    Caribsea Samurai Soil 3.5 lbs.

    Caribsea Samurai Soil 3.5 lbs. The ideal substrate for shrimp and planted aquaria This unique, uniformly graded material fits the pH and mineral requirements of the most sensitive freshwater fauna and flora, without the muddy texture and crumbling...

    Was: $14.95
    Now: $12.71
45 of 45 Items