The 8 Best Aquarium Sands
This wiki has been updated 4 times since it was first published in August of 2019. Sand that’s rich in minerals and nutrients will foster a healthy environment for the fish, plants, and other marine life in your aquarium. Its small grains provide more surface area than gravel, which helps beneficial bacteria to colonize and, in turn, keep the tank thriving and clean. It’s also great for catfish, snails and other creatures that like to burrow into the substrate. When users buy our independently chosen editorial picks, we may earn commissions to help fund the Wiki. Skip to the best aquarium sand on Amazon.
Custom Aquariums Sand Substrate The grains of this sand are small enough to prevent organic matter from penetrating deep down into your tank. Its neutral colors make detritus and algae less noticeable. It comes in a plastic pail that makes it easier to pour into your tank than when you’re using a plastic bag. It’s from a company that has sold products to major zoos in America, including the San Diego Zoo, Columbus Zoo, Bush Gardens, Sea World, Six Flags Animal Kingdom, and more. customaquariums.com
August 27, 2019:
Benefits of opting for aquarium sand over gravel include its more natural look, which better mimics the bottoms of the lakes and rivers that are the natural habitat of fish. It also needs to be changed less frequently than gravel, since its smaller grains tend to keep particles from sinking in, where things can rot and decay. Some of the selections featured here are touted for their good bacteria that will enhance the overall health of your aquarium.
One such choice is CaribSea Arag-Alive Bimini Pink, which contains millions of beneficial bacteria that enhance biological filtration, including by breaking down dangerous ammonia that tends to build up in some environments. Its an effective choice for cycling the tank immediately upon entry.
For a plant-heavy tank, look to Seachem Flourite, which is packed with nutrients to help plants grow, with a composition that ensures the roots have adequate air. Many satisfied customers proudly share before-and-after photos of how their plants have doubled in size after adding it to their aquariums. It’s a good value for the price, at around $2 per pound at this time.
If an affordable selection is what you’re after, check out FairmountSantrol AquaQuartz, which is designed primarily for pools but used in countless fish tanks. It’s nothing but 100% natural sand, which is chemical-free as well as easy to comb and clean. It’s a low-maintenance solution available at a fraction of the cost of many others.