--- product_id: 6696785 title: "CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3)" price: "€ 366.42" currency: EUR in_stock: false reviews_count: 10 url: https://www.desertcart.hr/products/6696785-caribsea-south-sea-base-rock-10-lbs-natural-aragonite-rock store_origin: HR region: Croatia --- # porous surface for coral attachment 10 lbs natural aragonite rock pH-stable for tank balance CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) **Price:** € 366.42 **Availability:** ❌ Out of Stock ## Summary > 🪸 Build your reef’s future with the rock that grows with it! ## Quick Answers - **What is this?** CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) - **How much does it cost?** € 366.42 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/6696785-caribsea-south-sea-base-rock-10-lbs-natural-aragonite-rock) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Coral Growth Catalyst:** Porous texture offers prime real estate for coral frags to thrive and flourish. - • **Tank Stability Booster:** Biologically active structure supports natural filtration and balanced water chemistry. - • **Marine-Safe Composition:** pH-stable formula ensures zero disruption to delicate marine ecosystems. - • **Custom Aquascaping Freedom:** Stackable and versatile design empowers your unique reefscape creativity. - • **Natural Aragonite Foundation:** Authentic base rock crafted from pure aragonite for a lifelike reef environment. ## Overview CaribSea South Sea Base Rock is a 10-pound natural aragonite rock designed for marine and reef tanks. Its porous surface promotes coral attachment and growth, while its biologically active, pH-stable composition helps maintain stable water conditions. Ideal for custom aquascaping, it offers a realistic and safe foundation to create vibrant, thriving reef ecosystems. ## Description desertcart.com : CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) : Aquarium Decor Rocks : Pet Supplies Review: Great rocks. great price. - These rocks are amazing for the price. Bought two boxes for my tanks (10G and a couple of 5 G) . I still had a few left. good size rocks, generous quantity. will definitely buy in the future when i upgrade my tank!! Make sure to wash them thoroughly before dropping them in the tank. They are pretty dusty. Review: It’s the way to go! - This is amazing value for your $ - comes pest free, and is easy to work with. I got three huge pieces, that were fairly easy to break with a hammer and flathead screw driver. I was able to create a great piece for my 3g Marineland contour with this rock. It is great rock to be able to work with, safe for your tank (whether SW or FW), and I prefer over anything. If you have a smaller tank, you will definitely need to break it up, as it looks like boulders when you first receive. Don’t let that discourage you though. Just make a mental pic of what you would like to create, and you will have a master piece with a little vision! ## Features - Natural Aragonite Rock: CaribSea South Sea Base Rock is made from natural aragonite, providing a realistic foundation for marine and reef aquascaping. - Supports Coral Growth: The porous surface provides ideal attachment points for coral frags, promoting healthy coral development and vibrant reef ecosystems. - Helps Maintain Tank Stability: Its biologically active structure aids in natural filtration, contributing to stable and balanced water conditions. - Safe for Marine & Reef Tanks: pH-stable composition ensures this rock doesn’t alter water chemistry, making it safe for marine species. - Versatile & Customizable Aquascaping: Perfect for custom aquascaping, this rock allows easy stacking and arrangement, offering endless possibilities for creative designs. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 789 Reviews | ## Product Details - **Brand:** Carib Sea - **Liquid Volume:** 18.42 Liters - **Item Weight:** 1 Pounds - **Item Form:** Natural - **Target Species:** Fish ## Images ![CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) - Image 1](https://m.media-amazon.com/images/I/71jYfEOr0rL.jpg) ![CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) - Image 2](https://m.media-amazon.com/images/I/81ZG3nOmvUL.jpg) ![CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) - Image 3](https://m.media-amazon.com/images/I/91DZn1Rhv8L.jpg) ![CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) - Image 4](https://m.media-amazon.com/images/I/91nu97mr5aL.jpg) ![CaribSea South Sea Base Rock - 10 lbs - Natural Aragonite Rock for Aquascaping, Promotes Coral Growth & Enhances Stability in Marine & Reef Tanks - (Case of 3) - Image 5](https://m.media-amazon.com/images/I/91XdQHGn++L.jpg) ## Questions & Answers **Q: Is this for 10 lbs OR 3 cases of 10 lbs each?** A: It comes as 3 pieces of rock that, together, weighs 10# - I felt that it was a misleading advertisement - I thought I was getting a total of 30# but this is NOT what I received. **Q: Can this keep my phosphates high?** A: not if you keep up with your water changes and feed less to your fish daily. **Q: Ok i'm going to sound stupid...can someone tell me why is a rock called a live rock ? almost 60 and never heard of this ...sorry !** A: Well in the hobby there are two forms usually associated. Live rock and dry live rock. Live rock is rock that has been cured and has a thriving bacteria colony living within it. Dry live rock (as in this caribsea rock) has 0 bacteria and does not have any seeded bacteria for your tank. This kind of rock made from aragonite, thy are all usually called live rock. It's mainly used for saltwater tanks but you can used them in freshwater as well. **Q: Is 10 lbs enough for 20 gallon tank** A: For filtration I would say no, because they say you need at least 1lb of rock per gallon. Aesthetically I would also say no bc in my 10gal this 10lbs was just enough. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great rocks. great price. *by K***N on January 29, 2025* These rocks are amazing for the price. Bought two boxes for my tanks (10G and a couple of 5 G) . I still had a few left. good size rocks, generous quantity. will definitely buy in the future when i upgrade my tank!! Make sure to wash them thoroughly before dropping them in the tank. They are pretty dusty. ### ⭐⭐⭐⭐⭐ It’s the way to go! *by A***C on September 7, 2020* This is amazing value for your $ - comes pest free, and is easy to work with. I got three huge pieces, that were fairly easy to break with a hammer and flathead screw driver. I was able to create a great piece for my 3g Marineland contour with this rock. It is great rock to be able to work with, safe for your tank (whether SW or FW), and I prefer over anything. If you have a smaller tank, you will definitely need to break it up, as it looks like boulders when you first receive. Don’t let that discourage you though. Just make a mental pic of what you would like to create, and you will have a master piece with a little vision! ### ⭐⭐⭐⭐⭐ Very happy with the rocks and seems as though i got way more than i ordered. *by W***Y on December 2, 2016* Received today and bought 20 poinds and although it was lighter than i thought it would be, i got an assortment of sizes and shapes. The rock is beautiful and arrived in great condition. I bought a masonry bit to drill them to insert fiberglass rods in them to hold them together in my reef tank, but they are so porous that i am not sure i am going to need to drill them. Looks like there are several holes thay i can slide.my rod into (lol). Wont know until i get a chance to work on the aquascape, but overall very satisfied but wish i would have only gotten 10 pounds, because it seems like more than i need. The right line of rocks below is one 10 pound bag and the left is the second 10 pound bag. A few little pieces broke off, and some dust. I threw the dust away and kept the little pieces that broke off. ## Frequently Bought Together - Carib Sea ACS00372 3 case South Sea Base Rock Bag for Aquarium, 10-Pound - CaribSea Arag-Alive 20 lb Fiji Pink Sand --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/6696785-caribsea-south-sea-base-rock-10-lbs-natural-aragonite-rock](https://www.desertcart.hr/products/6696785-caribsea-south-sea-base-rock-10-lbs-natural-aragonite-rock) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-02*