This wiki has been updated 2 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 recommendations, we may earn commissions to help fund the Wiki. Skip to the best aquarium sand on Amazon.
8. CaribSea ACS00222
Designed to mimic natural African cichlid environments, CaribSea ACS00222 provides buffering that creates a pH balance similar to that of these fish’s native waters. Its coarse grain size helps to reduce the buildup of debris.
- A mix of black and white
- Ideal for nesting feather fins
- Has some gravel mixed in
7. Activ Betta White
Activ Betta White will brighten up the floor of any tank or pond, while also hosting beneficial microbes and ensuring strong anchoring for plants. It’s fortified with essential elements, like strontium, potassium, and magnesium.
- Comes in a 1-pound bag
- Neutralizes odors
- Color not true to pictures
6. Nature’s Ocean Bio-Activ
Nature’s Ocean Bio-Activ contains live marine bacteria that stabilize their environment by restoring a natural, organic balance and removing nitrogenous waste. It’s been used by aquarium designers regularly on the Animal Planet TV series “Tanked.”
- Maintains proper ph
- Shelf life of 12 months
- Clouds water significantly at first
5. Seachem Flourite
Seachem Flourite is packed with the nutrients that plants need to thrive, and its porous composition helps their roots receive adequate air for proper growth. Unlike some others, it will last for years without requiring replacement.
- Striking black color
- A good value for the price
- Requires rinsing before use
4. Royal Ram 2 Pounds
Royal Ram 2 Pounds is available in natural, marble white, green, and maroon red, and is suitable for most fish tanks and pet habitats, as well as for beach-themed craft projects. This finely granulated selection comes screened and washed, and contains no chemicals or dyes.
- Looks great in succulent planters
- Backed by a satisfaction guarantee
- On the expensive side
3. CaribSea Arag-Alive Bimini Pink
CaribSea Arag-Alive Bimini Pink contains millions of beneficial bacteria that enhance biological filtration by breaking down dangerous ammonia. Unlike many others, it begins to cycle your tank immediately when you pour it in.
- No rinsing needed
- Proven to reduce nitrates
- Aids in coral growth
2. FairmountSantrol AquaQuartz
You won’t need to spend a lot of time rinsing FairmountSantrol AquaQuartz before using it, since it arrives thoroughly prewashed. It features a smooth, fine texture, yet it’s dense enough to settle down quickly when it’s poured in.
- Neutral shade of off-white
- Easy to rake and siphon
- A budget-friendly choice
1. CaribSea ACS00050
CaribSea ACS00050 is rich in aragonite, a carbonate mineral that helps to promote stable pH levels in marine and freshwater environments. The coarse grain size reduces built-up detritus effectively and is suitable for most under-gravel filtration systems.
- Free of metals and pesticides
- Neutral off-white color
- Made in the usa
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