Editor's Choice - Our Favorite Cobalt Aquatics Aquarium Décor Rocks

1. Cobalt Aquatics Tropical Flakes

User Ratings: 79 7

Cobalt Aquatics 21012 First Impressions

"Overall, they're great."

Overall, a great natural-looking stone in an aquarium. For the price, this should be solid resin. I hate negative reviews for awesome items just because the buyer didn't read! Really nice value for the money, I think. If you see black substrate, that was still waiting for the 2nd bag. I've bought quite a few packs to get the volume I needed. It's not difficult but you need rinse over and over to get the water clear.

  • Cobalt Aquatics Tropical Flakes
  • Prebiotics increase nutrient uptake and reduce waste for healthier fish and a cleaner tank
  • Improves coloration even more than the original formulation
  • Excellent for pre-spawning conditioning
  • Package Dimension: 4.0"L x 4.0"W x 6.3"H
  • Age range description: All Life Stages
  • Manufacture: Cobalt International Inc.
  • Product Dimensions: 4 x 4 x 6.3 inches; 8.64 Ounces
  • Editor's Impressions Of The Cobalt Aquatics 21012
  • Quality [star rating='4.2']
  • Value For Money [star rating='4.7']
  • Affordability [star rating='3.5']

Cobalt Aquatics 21012 Final Thoughts

"These were."

Originally I set up a waterfall with them, but decided to fill the tank all the way. But then again, it's 17lbs of rock so I struggled rating this one. The water deactivates it and makes it safe. I am only giving 4 star because I had no way to request a larger stone after order. Very surprised with how many rocks came with this order. Worth every penny, my nano looks great. Def need to clean before putting in your tank.

Overall Score
4.5

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

2. Alan Stone Glow in The Dark Gravel, Garden Decorative Glow Pebbles Stones,Glow Rocks for Fish Tank A...

User Ratings: 57 14

Alan Stone YGS16 First Impressions

"Be sure to rinse them."

I'm pretty happy with the rock I received. I used these for Aquarium decor and they look lovely in a planted tank. Love this product did not change colors when water ran over it. But then again, it's 17lbs of rock so I struggled rating this one. The result is a beautiful black rock with white lines. Provides an interesting texture to your aquascape. The structure is roughly 14l x 6h x 4d.

  • Alan Stone Glow in The Dark Gravel, Garden Decorative Glow Pebbles Stones,Glow Rocks for Fish Tank Aquarium Outdoor Backyard Walkway Decor (Heart Shape, Blue Green)
  • When you receive the parcel please kindly put all the pebbles in the sun for about half an hour to make them charge fully for the first time use, then you can watch in the dark, they will glow brightly. They will last the glowing for about 2 -3 hours in the fully dark space. They can charge and glow repeatedly.
  • If you want it to glow all the time in the dark indoor or outdoor please install a LED UV black light above them.
  • They can be used to decorate the home and garden flower pots, to mark paths and walk way or as a border for plant beds or ponds.They can be applied to pool, bar, vase decors, fish tank and Aquarium;
  • It's EN71 approved: non-toxic, non-radioactive and completely harmless to aquatic life.
  • They look like natural onyx, they are non-toxic, non-radioactive and completely harmless to aquatic life.
  • Manufacture: Xiamen Alan Stone Trade Co., Ltd.
  • Item Weight: 7 ounces
  • Editor's Impressions Of The Alan Stone YGS16
  • Quality [star rating='4.5']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='3.6']

Alan Stone YGS16 Final Thoughts

"Its a fortune."

Great product and it will definitely be buying more. The big rocks and theses small ones go perfect together. Honestly not much more I can say about rocks. My cichlid love hiding under the caves. Just hit the add to cart and wait until you get the dust off and see them wet. Don't even hesitate purchasing these stones. I switched up my plans a bit and everything was lovely.

Overall Score
3.8

[star rating="3.8"]
(57 Points)

3. Saim Aquarium Mountain View Ornament Tree Rock Cave Bonsai Fish Tank Decoration

Saim B0000030649 First Impressions

"Thank you to the seller."

It looks nice, and my kids had fun choosing which parts to hot glue onto the rock. I'll order this again, but for now I have more than I need! Dragon stone has a nice reddish tone to it so it really stands out. The price for the quantity of rock kind of drives me nuts. I got several smaller pieces that were about four to five inches wide. I am looking forward to getting my tank stocked up! Waiting in my second bag as I'm typing this.

  • Saim Aquarium Mountain View Ornament Tree Rock Cave Bonsai Fish Tank Decoration
  • Made from non-toxic plastic material.
  • Offers the natural environment feeling,change your aquarium into a beautiful scenery.
  • Detailed mountain includes several trees.
  • Size measures about: 10.2"/26cm x 5.1"/13cm x 7.9"/20cm (L*W*H)
  • Manufacture: Saim
  • Editor's Impressions Of The Saim B0000030649
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Saim B0000030649 Final Thoughts

"So far so good."

Loved what I got, highly reccomend these. I really hope they upload the other 3 pictures. Loved what I got, highly reccomend these. Honestly not much more I can say about rocks. Great product and it will definitely be buying more. I'll order this again, but for now I have more than I need! I got this for my 10 gal and it fits beautifully!

Overall Score
5.0

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

4. Natural Looking Aquarium Stepped Rock Ornament with Artificial Moss, Gray Slate Rock Mountain Ledge ...

User Ratings: 71

AquariumH2o First Impressions

"This was exactly perfect."

Originally I set up a waterfall with them, but decided to fill the tank all the way. The best part about this product was that it came with additional plants. Would definitely love to repurchase this item. They arrived in tact and were all the size described. One bigger chunk and five medium chunks. Not bad at all for twenty bucks total. Originally I set up a waterfall with them, but decided to fill the tank all the way.

  • Natural Looking Aquarium Stepped Rock Ornament with Artificial Moss, Gray Slate Rock Mountain Ledge Landscape Artificial Fish Tank Decoration
  • 12 Inch Tall x 8 Inch Long x 6 Wide, Natural Looking Aquarium Stepped Rock Ornament With Artificial Moss, Gray Slate Rock Mountain Ledge Landscape Artificial Fish Tank Decoration
  • Fish Safe Polyresin. Gray Slate Rock Cave Landscape Artificial Fish Tank Decoration
  • Attractive Design and Detailed
  • Great Addition to any Reptile or Fish Tank Aquarium or Vivarium
  • Easy to clean. They are 100% safe for fish made from special resin that is non toxic and designed specifically for use in aquariums and fish tanks. Wash all decorations in water prior to placement in tanks.
  • Manufacture: AquariumH2o
  • Editor's Impressions Of The AquariumH2o
  • Quality [star rating='4.2']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='3.7']

AquariumH2o Final Thoughts

"Im very happy."

I thought the price was great for the quantity and quality as well. Overall, a great natural-looking stone in an aquarium. I wanted real stone instead of the fake stuff at the local box stores. For the price, this should be solid resin. Very surprised with how many rocks came with this order. I got a nice large piece that was about six or eight inches wide. Trying shipping this much heavy stone.

Overall Score
4.6

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

5. Pisces 9 lb Maple Aquascaping Rock for Aquarium (AM-ROCK003)

User Ratings: 61 9

Pisces AM-ROCK003 First Impressions

"You will not be sorry."

This isn't even all of them in the photo. It was plenty for the tank I wanted to scape. Overall, a great natural-looking stone in an aquarium. I used these for Aquarium decor and they look lovely in a planted tank. Also, if you need any manzanita or any other driftwood. I used these for Aquarium decor and they look lovely in a planted tank. Super happy with what, only downside is I should've bought 2.

  • Pisces 9 lb Maple Aquascaping Rock for Aquarium (AM-ROCK003)
  • Aquarium safe
  • Amano Style
  • Reptile safe
  • Age range description: All Life Stages
  • Manufacture: Pisces USA
  • Product Dimensions: 7.87 x 11.81 x 7.87 inches; 9 Pounds
  • Editor's Impressions Of The Pisces AM-ROCK003
  • Quality [star rating='3.8']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='4.6']

Pisces AM-ROCK003 Final Thoughts

"Do the math."

My buddy said he found a better deal on etsy. I got these for a betta sorority tank. Just be prepared to buy several bags if you have a 20+ gallon. I wanted real stone instead of the fake stuff at the local box stores. The structure is roughly 14l x 6h x 4d. I really hope they upload the other 3 pictures. Loved what I got, highly reccomend these.

Overall Score
4.0

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

6. Jingchen 1 Lb/460g Natural Fluorite Tumbled Chips Crushed Stones Quartz Crystals Irregular Shaped Ge...

User Ratings: 44

Jingchen First Impressions

"I would recommend."

The only thing that was frustrating was the wait time for the shipping. I wanted real stone instead of the fake stuff at the local box stores. I soaked the rocks for about 20-25 min, took them out and hosed them off really well. I hate negative reviews for awesome items just because the buyer didn't read! These are excellent stones and a great buy for the money! Trying shipping this much heavy stone. Got this for my betta fish, he LOVES it.

  • Jingchen 1 Lb/460g Natural Fluorite Tumbled Chips Crushed Stones Quartz Crystals Irregular Shaped Gemstones for Aquarium/Fish Turtle Tank/Succulent Plants Decor/Vase Fillers
  • Tumbled chip stones Quantity: 1lb(460g), Size Details(Approx): 0.35" - 0.47"(7mm-9mm). Note: Polished of natural stones,each size and color may be little different.
  • Fluorite can be found in a wide range of colors: from green to black, and even with multiple colors on the same specimen. The different colors correspond with different meanings, but all colors are thought to activate one's mental, emotional, and spiritual aspects.
  • Widely Usage: Perfect for all kinds of crafts projects; Good for floral arrangements, wedding, party decoration; Excellent for chakra cleansing, reiki healing, and crystal grids, etc.
  • Safe & Long Lasting: Made of natural raw stones. Non-toxic just like river gravels, natural color won't fade away through time.
  • Tips: 1) The picture is only for your reference, please allow the shape and color of stones you received will be a little vary from picture. 2) To avoid children eating by mistake, keep it away from children under 3.
  • Manufacture: Jingchen
  • Editor's Impressions Of The Jingchen
  • Quality [star rating='4.9']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='4.8']

Jingchen Final Thoughts

"So pretty."

Absolutely perfect for use in my 20 gallon aquarium. When I opened the box I was so surprised and shocked. Love this product did not change colors when water ran over it. I purchased these for decor for my aquarium and I adore how they turned out. I wanted a large stone to stand out from the rest. The colors of the rocks are beautiful. We are working on the hardscape for our new 36G bow front.

Overall Score
4.1

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

7. XL Large White Rock Artificial Aquarium and Fish Tank Decoration Ornament, Artificial Fish & Reptile...

AquariumH2o Ago582 First Impressions

"Very happy with them."

It looks nice, and my kids had fun choosing which parts to hot glue onto the rock. These are excellent stones and a great buy for the money! Honestly it's a good idea to have some glue on hand anyways. It looks nice, and my kids had fun choosing which parts to hot glue onto the rock. Recieved 8 pieces of stone in my order with minimal chipping. I'll order this again, but for now I have more than I need! Great seller, great product, great price!

  • XL Large White Rock Artificial Aquarium and Fish Tank Decoration Ornament, Artificial Fish & Reptile Tank Rock Formation
  • Size is 17.5 Inch Diameter by 6 Inch Wide by 13 Inch Tall (45cm x 15cm x 33cm), This is a LARGE rock, recommended for Large Tanks.
  • Aquarium, Reptile & Fish Safe Polyresin
  • Unusual Shape, Artificial extra large white rock formation Aquarium & Fish Tank Decor, will look great in any Fish tank & Aquarium. This artificial rock formation has small holes allowing for shy fish to swim and hide.
  • Fish Safe Polyresin Will Not Effect water Chemistry. This aquarium ornament is great for decorating your aquarium with minimum maintenance. They are 100% safe for fish made from special resin that is non toxic and designed specifically for use in aquariums and fish tanks.
  • Great Addition and Coverage to any Aquarium, Fish & Reptile Tank Rock Formation
  • Manufacture: United Aquatics, LLC.
  • Editor's Impressions Of The AquariumH2o Ago582
  • Quality [star rating='4.7']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='4.4']

AquariumH2o Ago582 Final Thoughts

"I put a 16 oz."

I thought the price was great for the quantity and quality as well. When I keep it lit for at least an hour, it stays glowing for at least three hours. The rocks were REALLY dusty, covers with a lot of clay. Would definitely love to repurchase this item. Different shapes and sizes to work with. It took me all day to get them at least somewhat cleaned off. My only problem is trying to arrange them.

Overall Score
4.0

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

8. Bestgle Gorgeous Fish Tank Decoration Gems Aquarium Ornament Marbles Pebbles Beach Glass Beads, Deco...

User Ratings: 59 10

Bestgle First Impressions

"Again, rinse them good."

I used these for Aquarium decor and they look lovely in a planted tank. 2 small rocks and 4 medium ones and one large stone. If you are still questioning your purchase please re-read the headline. The bag I received was 17lbs and the rocks were in good condition. Great product and it will definitely be buying more. The colors of the rocks are beautiful. Love this product did not change colors when water ran over it.

  • Bestgle Gorgeous Fish Tank Decoration Gems Aquarium Ornament Marbles Pebbles Beach Glass Beads, Decorative Gravel Rocks Stones for Table Scatter, Vase Filler, Event, Wedding, Arts, Crafts
  • Made from tombar thite, noctilucent powder, glass solution and resin solution, ECO-friendly, fadless, non-toxic and fast colours. Safe for any aquatic life.
  • Quantity: 50 Pcs, Size: 2-3cm/0.8-1.2Inch, Color: Yellow-Green, Creamy, Pink, White, Light Yellow, Sky Blue, Dark Green, Orange and Light Purple. You will get the random and mixed color.
  • For first use, please expose the pebbles in the sun about 30 minutes to absorb enough light before puting them in your aquarium for glowing well in the dark.
  • Your aquarim will looks more fascinating, charming and wonderful with these lovely and sweet luminous pebbles. Smooth edge does no harm for your pet fish.
  • Perfect for aquarium, fish tanks, pools & ponds. And also a good idea for gardens and home plant pots.
  • Manufacture: Bestgle
  • Editor's Impressions Of The Bestgle
  • Quality [star rating='3.4']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='3.6']

Bestgle Final Thoughts

"Looks very nice."

Love this product did not change colors when water ran over it. Perfect size just what I needed not as many as I expected. They arrived in tact and were all the size described. Just trying to help you find good products for a good price. My buddy said he found a better deal on etsy. After playing with them for awhile now. Loved what I got, highly reccomend these.

Overall Score
4.1

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

9. Xiuguai 10 PCs New Luminous Stone Colorful Glow in The Dark Stones Pebbles Rock for Fish Tank Aquari...

User Ratings: 33 31

Xiuguai First Impressions

"Happy buyer here!"

Def need to clean before putting in your tank. There aren't any large enough to fully cover an entire base however. It was well worth time and effort to get them clean. The shapes very interesting and pleasant to look at. I thought the price was great for the quantity and quality as well. They are the perfect little hideaways for them! For an Iwagumi layout, this would be the Oyaishi.

  • Xiuguai 10 PCs New Luminous Stone Colorful Glow in The Dark Stones Pebbles Rock for Fish Tank Aquarium
  • 100% Brand New
  • Glow in the dark stones(artificial) 10 Pcs Random Color stones
  • Size about Length:1.5CM-3CM
  • Quantity: 10 pcs Color: Random Color
  • If you have any questions, please contact us.
  • Manufacture: Xiuguai
  • Editor's Impressions Of The Xiuguai
  • Quality [star rating='3']
  • Value For Money [star rating='2.8']
  • Affordability [star rating='3.5']

Xiuguai Final Thoughts

"This is just beautiful!"

The bag I received was 17lbs and the rocks were in good condition. My only problem is trying to arrange them. Originally I set up a waterfall with them, but decided to fill the tank all the way. Stones were perfect for my 5 gallon planted tank. The bag I received was 17lbs and the rocks were in good condition. Shipping was very fast and the stones were in excellent condition. Originally I set up a waterfall with them, but decided to fill the tank all the way.

Overall Score
3.0

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

10. Aqua KT 20 Inch Long Green Jungle Vine for Reptile Amphibian Lizard Decoration, Pack of One

User Ratings: 74

Aqua KT First Impressions

"Nice big pieces of slate."

And I had some left over rock, mostly because I use a lot of driftwood and plants. You definitely get a lot of slate for the price. Very surprised with how many rocks came with this order. They fit perfectly in my ten gallon aquarium. They are worth very dollar, and a very good price. Love these rocks and you usually get 1 big, 3 Med and the rest small. I used these for Aquarium decor and they look lovely in a planted tank.

  • Aqua KT 20 Inch Long Green Jungle Vine for Reptile Amphibian Lizard Decoration, Pack of One
  • Green and lush jungle vine leaves can give a comfortable environment to your reptile.
  • Each jungle vine has a suction cup that you can adsorb strongly directly on the glass.
  • High quality making, look very real in reptile tank.
  • Product Size: 20 Inch in Length, value package includes 1 PCS Jungle Vine.
  • Professional Reptile Vine Decoration for your Amphibian.
  • Manufacture: Aqua KT
  • Editor's Impressions Of The Aqua KT
  • Quality [star rating='4.3']
  • Value For Money [star rating='4.9']
  • Affordability [star rating='4.2']

Aqua KT Final Thoughts

"Nice big pieces of slate."

Photo 3 is during a diluted muriatic acid bath. You should never buy rocks but there's no Dragon stone down by the river. Just hit the add to cart and wait until you get the dust off and see them wet. Loved what I got, highly reccomend these. Great stones, came with 3 various sizes for the 5 lbs option. Overall, a great natural-looking stone in an aquarium. Don't even hesitate purchasing these stones.

Overall Score
4.7

[star rating="4.7"]
(5 Points)

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