CARIBSEA Aragonite Florida Aquarium Crushed Coral, 10-lb bag -

CaribSea Aragonite Florida Aquarium Crushed Coral

By CaribSea
Rated 5 out of 5 stars

$10.99Chewy Price

In Stock
FREE 1-3 day shipping over $49

About This Item


  • Works to reduce your tank’s current bioload so you can add more finned friends or luscious plant life to your aquarium.
  • Coarse coral offers plenty of surface area for healthy water-purifying bacteria.
  • Great for tanks with undergravel filtration or elevated pH levels.
  • Contains no ash, metals, pesticides or silica.
  • Works as a long-lasting buffer to help maintain water alkalinity.

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Questions & Answers

8 Customer Questions

Can this product be used in a koi pond with a liner?
Answer by ChewyJun 20, 2022
This product can be used with Koi and is good at maintaining hardness and pH which can be difficult to maintain in some pond situations.

Can this be used for tropical or cichlids
Answer by ChewyDec 25, 2022
Florida Crushed Coral is good for any freshwater application when a pH of 8.2, or thereabouts, is desired. This makes it perfect for African Cichlids. This would also mean that it would not be ideal for a general community tank.

Would this work in a freshwater turtle tank?
Answer by ChewySep 22, 2022
This crushed coral is suitable for freshwater tanks.

is this ok to be used with an under gravel filter?
Answer by ChewyApr 03, 2022
Florida Crushed Coral can be used with an under gravel filter.

ReviewsWrite a Review

Rated 5 out of 5 stars
5 Reviews
Would recommend to a friend

5 Customer Reviews

Rated 5 out of 5 stars
By Dave on Nov 12, 2022

Stablized PH and KH

I live in the Midwest and our water here is very hard and full of carbonates. That means when I do a water change the PH of my water jumps because of the carbonates in the water and over time they dissolve causing the PH to lower. I place this Aragonite crushed coral in a filter media bag and put it in my filter to stabilize both the PH and KH of my water to prevent crashes and spikes when I change the water in my fish tank. That all sounds really complicated but basically all you need to know is that this product is the real thing because it works aragonite is intended. It really is crushed coral and most fish tanks will benefit at least somewhat by having a small media bag of crushed coral to stabilize the KH. If you have Africah Cichlids or another type of fish that thrives on a higher PH it might be good to also use as a base layer for your substrate.

Rated 5 out of 5 stars
By Christa on Mar 4, 2023

Great product

Very fast shipping and the product is great. It instantly helped raised my pH in the tank.

Rated 5 out of 5 stars
By Kelly on Dec 19, 2021

Crushed coral

I would definitely recommend this to people who want to buff their PH. My PH is 8.1 and perfect. I use crushed coral in my saltwater aquarium. I mix it with sand sometimes or have put it in a mesh bag and put it in a canister filter. It works great to stabilize my PH.

Rated 5 out of 5 stars
By Gail on Oct 29, 2021

Does the job

Nice looking substrate and its helping add minerals to my tanks. All the critters seem to like it just fine.

Rated 5 out of 5 stars
By CrushedCoral on Jun 21, 2021

Perfect Substrate

Will purchase again and again! Use in all areas of the garden and aquarium. Fantastic!