CaribSea Ocean Direct Live Oolite Aquarium Sand, 20-lb bag

$23.50 Chewy Price
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About This Item

Details

  • Great substrate choice for starting a reef tank fast.
  • Each grain measures approximately 0.25–1.5 millimeters in size.
  • Provides a high surface area for beneficial bacteria growth.
  • Contains live ocean bacteria to help aquarium water cycle fast, clear quickly and provide a natural biological balance.
  • Each grain is coated with bacteria and encapsulated in a thin film of real ocean water to help improve gas exchange and mimic your finned friend’s natural environment.

Questions & Answers

2 Customer Questions


can I use this for my fresh water/tropical fish tank?

Answer by ChewyAug 10, 2022
Ocean Direct is suitable for marine aquariums and African Cichlids only. It will make the pH and hardness too high for most all other freshwater aquariums.

can you use it for aquatic turtles

Answer by ChewyJun 25, 2021
Ocean Direct can be used with most aquatic turtles. It tends to be quite fine and a coarser substrate may be more suitable for aquatic turtles. Also, Ocean Direct will raise the pH of the aquarium to around 8.2-8.3. Please make sure this is a suitable pH for the specific species of turtle you are keeping before using.
4.1
Rated 4.1 out of 5 stars
19 Ratings

8 Customer Reviews



Rated 2 out of 5 stars
By Cathy on Jan 13, 2026

Very cloudy

This sand is so fine it has been very difficult to filter. Tank has been cloudy for weeks and this sand stirs up so easily with any water movement in the tank

This sand is so fine it has been very difficult to filter. Tank has been cloudy for weeks and this sand stirs up so easily with any water movement in the tank. Caribsea is a good product but I would not ever go with this specific sand again for a tank.


Rated 2 out of 5 stars
By Jane on Dec 12, 2025

Nice Quantity

I like the quantity of sand, but the pic online to me looks nothing like the product you receive. It’s not white at all, but more tanish or yellowish. Going to return

I like the quantity of sand, but the pic online to me looks nothing like the product you receive. It’s not white at all, but more tanish or yellowish. Going to return bc we needed white for our albino class creature.


Rated 5 out of 5 stars
By Randy on Nov 18, 2025

Aquarium sand

Great product, Great customer service.

Great product, Great customer service.


Rated 5 out of 5 stars
By Susan on Apr 21, 2025

Good sand

I ordered 7 bags and 2 came broken they replaced and they were broken to. Chewy was amazing gave refund but FedEx is horrible was switching the box's and taping

I ordered 7 bags and 2 came broken they replaced and they were broken to. Chewy was amazing gave refund but FedEx is horrible was switching the box's and taping the bags.. I ended up with 3 bags busted bags one was list came days later.


Rated 2 out of 5 stars
By Samantha on Jan 4, 2025

There’s a hole in my bag of sand

I ordered a 40 pound bag of sand from chewy I got it in the mail and there’s a big hole in my bag of sand sand all over the bag and the box

I ordered a 40 pound bag of sand from chewy I got it in the mail and there’s a big hole in my bag of sand sand all over the bag and the box


Rated 2 out of 5 stars
By Shayan on Jul 20, 2024

Ripped bag

Just opened the box and the bag of sand was ripped with sand spilling out the box.

Just opened the box and the bag of sand was ripped with sand spilling out the box.


Rated 5 out of 5 stars
By lb9234 on Dec 17, 2021

Great sand

Really great sand I would recommend it.... Looks really nice in a tank

Really great sand I would recommend it.... Looks really nice in a tank


Rated 2 out of 5 stars
By redsone105 on Jul 5, 2021

Hi lost my sand to times.

Lost my sand to times. Not good. Not good. not good. Derek Templeton

Lost my sand to times. Not good. Not good. not good. Derek Templeton