Editor's Choice - Our Favorite Coral Aquarium Décor Rocks

1. Carib Sea ACS00372 3 case South Sea Base Rock Bag for Aquarium, 10-Pound

User Ratings: 77 5

Carib Sea 008479003720 First Impressions

"Did buy again."

Com is the only place I trust for my tanks. It was plenty for the tank I wanted to scape. I had to break up some of the larger ones to fit what I was looking for. It looks nice, and my kids had fun choosing which parts to hot glue onto the rock. And placed in a 36 gallon bowfront. Not sure why but I just expected more. We are working on the hardscape for our new 36G bow front.

  • Carib Sea ACS00372 3 case South Sea Base Rock Bag for Aquarium, 10-Pound
  • No curing needed, South Seas is ready to use right away
  • It makes the best live rock to, takes coralline algae beautifully
  • Package Dimensions: 18.415 L x 33.528H x26.797W(centimeters)
  • Package Weight : 4.813 kilograms
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 1 x 1 x 1 inches; 1 Pounds
  • Editor's Impressions Of The Carib Sea 008479003720
  • Quality [star rating='3.8']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Carib Sea 008479003720 Final Thoughts

"Small but cute display."

I couldn't find these at any of the aquarium stores near me, chain or independent. I'm always hesitant to buy it online, but this was a good transaction. It was well worth time and effort to get them clean. Different shapes and sizes to work with. The shapes very interesting and pleasant to look at. I'm always hesitant to buy it online, but this was a good transaction. The bag I received was 17lbs and the rocks were in good condition.

Overall Score
4.6

[star rating="4.6"]
(296 Points)

Peoples Choice - Other Highly Rated Coral Aquarium Décor Rocks

2. CARIBSEA INC Life Rock Shapes Natural Corral 20 LB

User Ratings: 70 8

Carib Sea 00381 First Impressions

"The fish love it."

Honestly not much more I can say about rocks. The water deactivates it and makes it safe. They match perfectly to my center piece and the cichlids love hiding in them. I also placed one or two inside her bathing dish to help her climb in and out better. It took about a hour to clean the rocks off. I soaked the rocks for about 20-25 min, took them out and hosed them off really well. Trying shipping this much heavy stone.

  • CARIBSEA INC Life Rock Shapes Natural Corral 20 LB
  • CaribSea LifeRock Shapes is made of an aragonitic base rock, instead of the typical cement used by some other artificial rock creators. Every rock contains a network of micro and macro pores that intertwine within the rock's internal structure, creating the perfect environment for natural nitrifying bacteria.
  • LifeRock is manmade. Every LifeRock from CaribSea has an artificial coating and texture that mimics natural coralline algae after being in the ocean for years.
  • Every box of Shapes LifeRock contains a mixture of arches, rings, and tunnels giving you unique looking pieces that can be used on their own or as accents to the rest of the aquascape.
  • Pieces are unique. They will look similar to the pieces picture, but every box is different. The Shapes will have 4 pieces: One cave, 2 arches, and one ring. We guarantee every box is at least 20 pounds. We recommend 1 to 2 pounds of rock per gallon of aquarium water.
  • NOTE: This rock is fragile and may break in shipping. Unless it is pulverized we can not replace the rock if broken. This rock needs to be glued together when placed in an aquarium anyway, and in many instances you might want to break the rock into smaller pieces to build a desirable structure.
  • Manufacture: Caribsea
  • Product Dimensions: 3.25 x 5.75 x 7.5 inches; 5.35 Pounds
  • Editor's Impressions Of The Carib Sea 00381
  • Quality [star rating='4.3']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='4.4']

Carib Sea 00381 Final Thoughts

"Overall, a good purchase."

Loved what I got, highly reccomend these. I got a nice large piece that was about six or eight inches wide. Don't even hesitate purchasing these stones. The structure is roughly 14l x 6h x 4d. Also, if you need any manzanita or any other driftwood. I'm always hesitant to buy it online, but this was a good transaction. Honestly it's a good idea to have some glue on hand anyways.

Overall Score
4.3

[star rating="4.3"]
(50 Points)

3. FTVOGUE Resin Simulation Mountain Coral Rockery Hiding Cave View Stone Fish Tank Aquarium Decoration...

User Ratings: 54 6

FTVOGUE First Impressions

"Beautiful smooth rocks."

They are the perfect little hideaways for them! It took about a hour to clean the rocks off. And will change the hardness and ph of your water as it leeches. I'm pretty happy with the rock I received. They arrived in tact and were all the size described. These are excellent stones and a great buy for the money! So I bought these thinking I'd get much bigger pieces.

  • FTVOGUE Resin Simulation Mountain Coral Rockery Hiding Cave View Stone Fish Tank Aquarium Decorations
  • Made from non-toxic resin material, which is flexible and realistic
  • Colorful and vivid, artificial coral design, change fish tank into the beautiful scenery
  • Safe, won't die, rot or cause any algae problems. Wash with clean water several times before first use
  • Provide a great hiding place for your fish. Suitable for use in both saltwater and freshwater
  • Ideal for reptiles, such as, lizards, turtles, spiders, snakes, centipedes, scorpions, frogs, fish etc
  • Manufacture: FTVOGUE
  • Product Dimensions: 5.12 x 3.15 x 3.74 inches; 6.35 Ounces
  • Editor's Impressions Of The FTVOGUE
  • Quality [star rating='4.5']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.4']

FTVOGUE Final Thoughts

"Small but cute display."

It looks nice, and my kids had fun choosing which parts to hot glue onto the rock. It was plenty for the tank I wanted to scape. Just be prepared to buy several bags if you have a 20+ gallon. Other fish may not like the ph change. Don't even hesitate purchasing these stones. Would definitely love to repurchase this item. So I bought these thinking I'd get much bigger pieces.

Overall Score
4.0

[star rating="4"]
(24 Points)

4. ARC Reef Premium Live Rock for Saltwater Aquariums, 25 Lbs.

User Ratings: 42 34

ARC Reef First Impressions

"I love theses."

I wanted a dark rock decoration for my 5 gallon. I hate negative reviews for awesome items just because the buyer didn't read! It was well worth time and effort to get them clean. I placed an order of 10ilbs for my 20g high. It was well worth time and effort to get them clean. Photo 3 is during a diluted muriatic acid bath. Every living thing in both tanks are healthy and as far as I can tell happy.

  • ARC Reef Premium Live Rock for Saltwater Aquariums, 25 Lbs.
  • 25 Pounds of Premium Live Rock Packed With Life and Years of Growth They are Fully Encrusted with Coralline Algae
  • Requires No Curing. Ready to be Placed into Your Saltwater Fish Tank or Marine Aquarium *(see map)
  • ARC Reef Live Rocks are 100% Aquacultured and Grown on an Artificial Reef, Helping to Save our Natural Reefs
  • Highest Concentration of Beneficial Nitrifying Bacteria. Removes Harmful Waste and Aids in Cycling New Tanks
  • Extremely Porous and Chock Full of Holes and Crevices. Great for Coral Frag Placement and Stacking
  • Manufacture: ARC Reef
  • Editor's Impressions Of The ARC Reef
  • Quality [star rating='3.8']
  • Value For Money [star rating='4.1']
  • Affordability [star rating='3.4']

ARC Reef Final Thoughts

"Still stays put though."

The colors of the rocks are beautiful. Got this for my betta fish, he LOVES it. In the 5lb box, I got two large, a medium, and a small piece. I wanted a dark rock decoration for my 5 gallon. I use it in my resin art work and it looks fantastic! Really nice value for the money, I think. The edges of holes are also sharp, but easy enough to smooth with a razor knife.

Overall Score
3.4

[star rating="3.4"]
(11 Points)

Honorable Mentions - More Top Selling Coral Aquarium Décor Rocks

5. ARC Reef Premium Live Rock for Saltwater Aquariums, 45 lbs.

ARC Reef First Impressions

"Very pleased."

I also placed one or two inside her bathing dish to help her climb in and out better. Shipping was very fast and the stones were in excellent condition. My cichlid love hiding under the caves. These broken bits are perfect for little details and filling gaps. They are making these by sloshing resin around in a mold, so it's really thin. They fit perfectly in my ten gallon aquarium. Overall, a great natural-looking stone in an aquarium.

  • ARC Reef Premium Live Rock for Saltwater Aquariums, 45 lbs.
  • 45 Pounds of Premium Live Rock Packed with Life and Years of Growth. Fully Encrusted with Coralline Algae
  • Requires No Curing. Ready to be Placed into Your Saltwater Fish Tank or Marine Aquarium *(see map)
  • ARC Reef Live Rocks are 100% Aquacultured and Grown on an Artificial Reef, Helping to Save our Natural Reefs
  • Highest Concentration of Beneficial Nitrifying Bacteria. Removes Harmful Waste and Aids in Cycling New Tanks
  • Extremely Porous and Chock Full of Holes and Crevices. Great for Coral Frag Placement and Stacks Easily
  • Manufacture: ARC Reef
  • Editor's Impressions Of The ARC Reef
  • Quality [star rating='4.7']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='4.2']

ARC Reef Final Thoughts

"I love theses."

Was a LOT to clear off the gray dust if using in an aquarium. Cleaned the dust and clay residue off under running water and some brushing. Really nice value for the money, I think. Really nice value for the money, I think. They are making these by sloshing resin around in a mold, so it's really thin. I was very pleasantly surprised with these dragon stones. The rocks were REALLY dusty, covers with a lot of clay.

Overall Score
5.0

[star rating="5"]
(9 Points)

6. ARC Reef Standard Live Rock for Saltwater Aquariums, 45 lbs.

User Ratings: 53

ARC Reef First Impressions

"She likes them."

They get tossed around in shipping and chunks break off. The colors of the rocks are beautiful. Def need to clean before putting in your tank. Not sure why but I just expected more. Items delivered match the product description perfectly. Worth every penny, my nano looks great. These are just what I needed to creat stone walks in my model railroad park.

  • ARC Reef Standard Live Rock for Saltwater Aquariums, 45 lbs.
  • 45 Pounds of ARC Reef Standard Live Rock with over 50% Coverage of Pink and Purple Coralline Algae
  • Requires No Curing. Ready to be Placed into Your Saltwater Fish Tank or Marine Aquarium *(see map)
  • ARC Reef Live Rocks are 100% Aquacultured and Grown on an Artificial Reef, Helping to Save our Natural Reefs
  • Full of Beneficial Nitrifying Bacteria. Removes Harmful Waste and Helps aid the Cycling of New Tanks
  • Extremely Porous and Chock Full of Holes and Crevices. Great for Coral Frag Placement and Stacking
  • Manufacture: ARC Reef
  • Editor's Impressions Of The ARC Reef
  • Quality [star rating='3.6']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

ARC Reef Final Thoughts

"I bought 2 for a 2."

I wanted real stone instead of the fake stuff at the local box stores. They are making these by sloshing resin around in a mold, so it's really thin. They are making these by sloshing resin around in a mold, so it's really thin. Stones were perfect for my 5 gallon planted tank. There aren't any large enough to fully cover an entire base however. I placed an order of 10ilbs for my 20g high. I wanted a dark rock decoration for my 5 gallon.

Overall Score
4.5

[star rating="4.5"]
(3 Points)

7. Walt Smith 2.1 Reef Rock for Saltwater Aquariums! Pest Free! (Appx. 55lbs)

User Ratings: 71

Walt Smith 55086 First Impressions

"Again, rinse them good."

They arrived in tact and were all the size described. After playing with them for awhile now. Also, if you need any manzanita or any other driftwood. I am only giving 4 star because I had no way to request a larger stone after order. These are just what I needed to creat stone walks in my model railroad park. If you are thinking about buying these, DO IT. They fit perfectly in my ten gallon aquarium.

  • Walt Smith 2.1 Reef Rock for Saltwater Aquariums! Pest Free! (Appx. 55lbs)
  • Purple to pink coloration without waiting for coraline algae to grow!
  • Easy to add to an existing aquarium!
  • 100% Pest Free!
  • Easy to build your dream aquascape with!
  • Manufacture: Walt Smith
  • Product Dimensions: 19.25 x 15 x 13.5 inches; 55 Pounds
  • Editor's Impressions Of The Walt Smith 55086
  • Quality [star rating='4.9']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.1']

Walt Smith 55086 Final Thoughts

"Highly recommend it."

I purchased the caves for my 65 gal Lake Tanganyikan tank. And will change the hardness and ph of your water as it leeches. They are making these by sloshing resin around in a mold, so it's really thin. But it was definitely not what I expected. So I bought these thinking I'd get much bigger pieces. Was a LOT to clear off the gray dust if using in an aquarium. These broken bits are perfect for little details and filling gaps.

Overall Score
4.1

[star rating="4.1"]
(3 Points)

8. Penn-Plax Deco Replicas Resin Aquarium Ornament

Penn-Plax RR991 First Impressions

"Very pleased."

It looks nice, and my kids had fun choosing which parts to hot glue onto the rock. And placed in a 36 gallon bowfront. No I dont work for them and no I dont get anything for saying that. They are worth very dollar, and a very good price. I used these for Aquarium decor and they look lovely in a planted tank. They match perfectly to my center piece and the cichlids love hiding in them. Absolutely perfect for use in my 20 gallon aquarium.

  • Penn-Plax Deco Replicas Resin Aquarium Ornament
  • Designed for fresh and sale water aquariums
  • Real coral reef look allows fish to swim through the holes and use them as a hiding place for larger fish
  • Stands 8" high
  • Manufacture: Penn Plax, INC.
  • Product Dimensions: 9 x 4 x 8 inches; 1 Pounds
  • Editor's Impressions Of The Penn-Plax RR991
  • Quality [star rating='5']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='5']

Penn-Plax RR991 Final Thoughts

"Nice big pieces of slate."

I hate negative reviews for awesome items just because the buyer didn't read! I really hope they upload the other 3 pictures. Every living thing in both tanks are healthy and as far as I can tell happy. My cichlid love hiding under the caves. Honestly not much more I can say about rocks. It's simple slate rock but it's natural and really great for my box turtle terrarium. You definitely get a lot of slate for the price.

Overall Score
5.0

[star rating="5"]
(1 Points)

9. Aquanetta Multi Cave Ceramic Reef Rock

Aquanetta MRMS28 First Impressions

"Looks so good."

They match perfectly to my center piece and the cichlids love hiding in them. Photo 5 is a sample layout for my 45cm tank. For an Iwagumi layout, this would be the Oyaishi. I am only giving 4 star because I had no way to request a larger stone after order. The best part about this product was that it came with additional plants. This isn't even all of them in the photo. The structure is roughly 14l x 6h x 4d.

  • Aquanetta Multi Cave Ceramic Reef Rock
  • The reef rock contains minimum 2 caves and minimum 8 coral sockets, which allow it to be adjusted to every aquarium conditions.
  • Contains 4 grades of fractally-organised pores which create even ten times better living conditions for aquarium organisms than the natural rock!
  • Our reef rock is chemically inert due to the high firing temperature - over 1200 deg. c
  • Easy to blend into aquarium environment.
  • Highly biocompatibile, hand made of high quality, ceramic raw material.
  • Manufacture: Aquanetta
  • Product Dimensions: 5.91 x 7.87 x 5.91 inches; 1.98 Pounds
  • Editor's Impressions Of The Aquanetta MRMS28
  • Quality [star rating='4.4']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.3']

Aquanetta MRMS28 Final Thoughts

"It's not a huge piece."

These are just what I needed to creat stone walks in my model railroad park. And placed in a 36 gallon bowfront. It took about a hour to clean the rocks off. Photo 5 is a sample layout for my 45cm tank. It's simple slate rock but it's natural and really great for my box turtle terrarium. For an Iwagumi layout, this would be the Oyaishi. And I had some left over rock, mostly because I use a lot of driftwood and plants.

Overall Score
5.0

[star rating="5"]
(1 Points)

10. ARC Reef Standard Live Rock for Saltwater Aquariums, 25 lbs.

ARC Reef First Impressions

"They do glow really well."

It's simple slate rock but it's natural and really great for my box turtle terrarium. But it was definitely not what I expected. So glad I bought these for my tank. The structure is roughly 14l x 6h x 4d. I'll order this again, but for now I have more than I need! I use it in my resin art work and it looks fantastic! They are the perfect little hideaways for them!

  • ARC Reef Standard Live Rock for Saltwater Aquariums, 25 lbs.
  • 25 Pounds of ARC Reef Standard Live Rock with over 50% Coverage of Pink and Purple Coralline Algae
  • Requires No Curing. Ready to be Placed into Your Saltwater Fish Tank or Marine Aquarium *(see map)
  • ARC Reef Live Rocks are 100% Aquacultured and Grown on an Artificial Reef, Helping to Save our Natural Reefs
  • Full of Beneficial Nitrifying Bacteria. Removes Harmful Waste and Helps aid the Cycling of New Tanks
  • Extremely Porous and Chock Full of Holes and Crevices. Great for Coral Frag Placement and Stacking
  • Manufacture: ARC Reef
  • Editor's Impressions Of The ARC Reef
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.2']

ARC Reef Final Thoughts

"Great quality product."

The edges of holes are also sharp, but easy enough to smooth with a razor knife. Other fish may not like the ph change. I got 9 rocks in several sizes as noted in the pictures and several tiny chips. Also, if you need any manzanita or any other driftwood. These broken bits are perfect for little details and filling gaps. So glad I bought these for my tank. I got a nice large piece that was about six or eight inches wide.

Overall Score
5.0

[star rating="5"]
(1 Points)

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