Aquarium Underground Tunnel Cave Natural Curve Two Hole | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Pleco

After having established a tank over a couple months, I noticed my few Cory catfish weren’t quite as playful or energetic as they should be (even for their laid back personalities) and I asked my LFS if it was worth adding sand to the gravel substrate, or a partial area. It’s an ongoing debate as I now know whether Cory’s should or shouldn’t have sand to mimick their natural habitats to make their little lives happier. This product was a PERFECT addition to my tank even though the LSF store said they’d be fine with gravel…I looked at similar products but the reviews speak for themselves on this one! Very durable with some weight, smooth edges and overall very high quality cave feature. Although it took some careful rearranging and cleaning of my tank, getting the premium sand rinsed in the sink and scooped into this cave unit ahead of time, I was able to lower it carefully into the existing tank without making a giant sand mess. If you’re starting from scratch this would be super easy to add before water!The pic only shows one of my few Corys, but they all found the sandbox cave within 24 hours and there’s 100% noticeable difference in their more playful behavior. Our bristlenose sucker, snail, and shrimp all take turns in and out of this unit too!

The animals love it, for Corys and neocaridina shrimp, it's a perfect size. Large round openings are easy for them to travel through and it feels well made. I'm satisfied.

All the fish love to explore it, though the pleco had made it his own. Added a cool view point to my tank that my fish enjoy.

It is way smaller than it looks in the pictures. My yoyo loaches (3") can barely fit. Pretty sturdy tho. Ish it was twice the size.

A little smaller than expected.But great works for what I wanted.It looks great

The media could not be loaded. I Iove watching my little Panda Corydora's & Shrimp explore the cave I bought. It's their little sanctuary that makes my office a peaceful place to work.The quality of these caves is amazing, definitely exceeded expectations. They are easy to add to the tank, the size is perfect for my smaller fish! And it makes the tank that much more functional. I like my fish to have a place to hide and feel safe, but I also like to watch them...not in a voyeuristic kinda way, get your head outta the gutter.These are totally worth the money and make the money I spent on fish that like to hide so much more worth it!

Why did you pick this product vs others?:Its too small for my aquarium. The plecos move it around and turn it upside down. Sadly not for my tank

Great product. Smelled a bit chemical like when first out of box so i rinshed it off. My loaches love it. Easy to install. Lays flat against glass. Even the fish swim in and out.