$149.99
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Saturday, Nov 14
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At a glance
- Condition
- New
- Dimensions
- 20 x 15.5 x 12.8 in; 20 lb
- Weight
- 20 lb
- Color
- No Color
- Material
- Plastic
- Directions
- use as directed
- Size
- 20lb (Pack of 1)
- In the box
- Caribsea Life Rock Arches for Aquariums
- Warranty
- Warranty
Features 5
- Perfect for Aquascaping: The CaribSea LifeRock Arches set includes four 12" rocks, perfect for creating natural caves, tunnels, and arches in your aquarium.
- Supports Coral Growth: Made from porous aragonite, these rocks provide ideal attachment points for coral frags, encouraging healthy coral development.
- Enhances Biological Balance: The highly porous structure aids in natural filtration, promoting a healthy and balanced aquarium environment.
- Safe for Marine Tanks: pH-stable aragonite ensures these rocks wont alter water chemistry, keeping the environment safe for fish, corals, and invertebrates.
- Easy to Stack & Arrange: Pre-formed arch-shaped rocks allow easy stacking and arranging to create custom aquascapes without adhesives.
Specs 17
| Product Dimensions | 20 x 15.5 x 12.8 inches; 20 pounds |
|---|---|
| Item model number | 013217 |
| Department | unisex-adult |
| Manufacturer | Caribsea |
| Item Weight | 20 pounds |
| Item Package Dimensions L x W x H | 19.76 x 14.96 x 12.76 inches |
| Item Dimensions LxWxH | 20 x 15.5 x 12.8 inches |
| Brand Name | Carib Sea |
| Target Audience Keyword | fish |
| Directions | use as directed |
| Model Name | Caribsea Life Rock Arches for Aquariums |
| Color | No Color |
| Size | 20lb (Pack of 1) |
| Material | Plastic |
| Age Range Description | All Life Stages |
| Number of Items | 1 |
| Specific Uses for Product | aquarium decor |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 14
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Good product.
None came broken, and they were very well packaged in many layers of bubble wrap. Even if they were though, I don’t think it’d be a big deal. Pieces are great for making caves. Color is nice too and will blend with my existing scape right away.
Reviewed in the United States on August 23, 2026 by Genny
Broken
Arrived extremely broken. Literally not one piece was large enough to make any arch or design. Had to glue everything together and eventually just gave up.
Reviewed in the United States on May 24, 2026 by Paul judia
Excellent Rock
Excellent rock arch! It looks very natural, is lightweight, and was the perfect addition to my aquarium. It provides great hiding places for my fish and made aquascaping much easier. The quality is excellent, and it blends in beautifully with the rest of the tank. Highly recommended!
Reviewed in the United States on July 27, 2026 by John Ferlito
Reef Arches
I was literally shocked at the size and quantity!! Def worth the purchase.
Reviewed in the United States on September 26, 2026 by Stephanie Carlton
Awesome Broken Stones!!
Ya know, if these guys would invest in some bubble wrap, I’m sure their ratings would be really great! I got four BEAUTIFUL pieces, that turned into eight or nine beautiful pieces (after shipping). It turned into somewhat of a puzzle. I got super glue and everything is all good now, except you owe me a pair of work pants that I got super glue all over😂 No, seriously, if they don’t start using bubble wrap and protecting all of these stones, yours will be broke too. But they are beautiful when put back together.
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Reviewed in the United States on May 7, 2025 by Amazon Customer
Buy glue at the same time
Looks great but not one arch showed up in one piece still glad to have it but not exactly what you pay for
Reviewed in the United States on September 18, 2026 by kasey zipperian
Look great!!!
BUY THIS NOW! I was worried about breakage after reading reviews all four of my arches came well packed. These arches look absolutely beautiful cheaper than pet store! JUST BE SURE TO REQUEST AMAZON BOX OVER PRODUCT BOX to protect package contents... good luck
Reviewed in the United States on May 31, 2025 by cdub
Every rock came broken ,
I bought four rocks all four were broken one was broken in 3 pieces. , not happy , I wouldn’t buy from them again. It’s cement that’s painted Garbage don’t waste your money it’s all garbage
Reviewed in the United States on February 12, 2025 by Bill