PINVNBY Coral Aquarium Decoration (Size: 6.3 x 4.7 x 4.7 inches) Small Fish Tank Decorations Resin Rock Mountain Cave Ornaments Betta Fish Hideout House for Beta Sleep Rest Hide Play Breed
$11.99






Price: $11.99
(as of Nov 07, 2025 15:04:42 UTC – Details)
Product description



Resin production, no sharp edges, won’t hurt your pet.

Our coral rock has four holes for your pet betta fish or other small fish to play in or rest in.

Brightly painted and vibrant colors are nice for your lovely pet.

Good paint materials, even if they have been soaked, will not decolorize and pollute the water quality.

Small fish tank decorations does not need too much care, you only need to take out and clean it on time, can be used for a long time, easy maintenance, very suitable for decorating the fish tank, to create a beautiful and interesting living environment for fish.
Rich and Colorful: The Colorful Coral Aquarium Decoration makes your aquarium look vivid, and adds to natural color and beautiful scenery. Also is an excellent hiding cave for fish to play, add more fun to their lives, and help to relieve stress
Material Safety: Coral decoration made of resin, suitable for all terrariums, aquariums, freshwater & saltwater. It doesn’t pose harm to your aquatic animals nor create any ill impact on water quality
Reduce Fish Stress: The small fish tank decorations has 3 holes on the rockfish decor, your lovely pet betta or other smaller fish would be super happy to go in and out of the trunk cave to sleep, rest, hide, play, breed
Solid Integrated Structure: Aquarium decor resin coral rock mountain is a solid one-piece structure, it features aeration holes and swim-through chambers, making a healthy and beautiful underwater world for your fish and pets
The Colorful Coral Aquarium Decoration is Medium Size: 6.3 x 4.7 x 4.7 inches, great for fish tank decorations, model making, terrariums, marine aquariums, mini gardens, fairy gardens, gnome gardens
Easy to Manage: The color decoration on the top does not fade and is very easy to take care of. No need to take care of this will save you a lot of time
Note: After receiving the goods, before use make sure to use sandpaper to smoothen the edges and soak the decoration in the sink for at least 24 hours
Customers say
Customers find the aquarium decoration beautiful and appreciate its good quality material and vibrant colors. The size is decent, with one customer noting it’s perfect for a 10-gallon tank, and customers say their fish love it, with one mentioning they enjoy swimming through the holes. While some customers find it durable, others report receiving broken pieces. The edges are sharp, which customers consider a negative aspect.
11 reviews for PINVNBY Coral Aquarium Decoration (Size: 6.3 x 4.7 x 4.7 inches) Small Fish Tank Decorations Resin Rock Mountain Cave Ornaments Betta Fish Hideout House for Beta Sleep Rest Hide Play Breed
Add a review
$11.99
Sharon M –
Well made with vivid colors.
Very real looking!
Jeanette Hess –
Beautiful aquarium rock
Very sturdy. Good value for money. Nice size. I bought the large, but it comes in two sizes. Really beautiful.
April Lewandowski –
My betta likes it
Bought this to switch out for my betta’s pineapple which he loved to hide in but didn’t match the aesthetic we were looking for in his tank. This looks really nice. And he loves to go in and out of the different openings. And he hides in it when the filter is going. The colors are great.
Jor-El –
Decorative and fish love it, although needs modification.
Very colorful and my fish like to go in sometimes. However, I read a few complaints in the comments about sharp edges around the holes and a film being released into the water which caused cloudiness. To avoid injuring my fish I used sandpaper to smoothen the edges and soaked the decoration for at least 24 hours in the sink. There was no visible film or cloudiness, however. The edges were quite sharp and would be nice if this came ready out of the box, hence the 4 stars. Overall I am very happy with this purchase.
Michelle –
Fish decor
Great decor. Fish loved it.
sb129gurl –
Good fit for a small tank
So far so good. Fish seem to love the new hiding spot this cave created. The colors are nice and the product seems to be made of good quality material. I had a smaller cave like hide that kept losing paint everytime I cleaned the tank. I’m hoping this one will not have the same problem. Overall I feel it was a good buy. Time will tell if it last but the fish really love going in and out of the different holes so that alone makes me happy. The dimensions were accurate. I have about a 5to7 gallon tank. Not sure since it was given to me but it’s not very big and this fit just right. Takes up space in my small tank but the kids and I think it makes the tank look a lot more colorful and fun for the fish. If the paint starts to chip off I’ll update the review, but for now I am very pleased with the product I received.
Amazon Customer –
Be careful
I am happy with the look of the item. Just as advertised. My issue is there were several very sharp protrusions on the edges of every opening. I was worried it would hurt my fish swimming through. I thought about trying to file or sand those areas since my daughter picked the item out. It does look good just wish it didn’t have sharp edges.
andrea solorio –
Good size
Good size !! & Good Quality ð
Krishna M. –
Good product… Fish play going and coming out of the cave !!!
Sarah Weaver –
Great for my 10 gallon
gaetan lambert –
tres beau decord parfait a placer dans votre aquarium