---
product_id: 662467110
title: "Aquarium Underground Tunnel Cave Natural Curve | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Clown Loach, Pleco"
brand: "lucky critter"
price: "€ 39.92"
currency: EUR
in_stock: true
reviews_count: 9
category: "Lucky Critter"
url: https://www.desertcart.fi/products/662467110-aquarium-underground-tunnel-cave-natural-curve-viewing-fish-and-shrimp
store_origin: FI
region: Finland
---

# 7" natural curve length 2.25" cave entrance for perfect viewing aquarium-safe plastic, sinks naturally Aquarium Underground Tunnel Cave Natural Curve | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Clown Loach, Pleco

**Brand:** lucky critter
**Price:** € 39.92
**Availability:** ✅ In Stock

## Summary

> 🐟 Dive into a new dimension of aquarium life with the Underground Tunnel Cave!

## Quick Answers

- **What is this?** Aquarium Underground Tunnel Cave Natural Curve | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Clown Loach, Pleco by lucky critter
- **How much does it cost?** € 39.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/662467110-aquarium-underground-tunnel-cave-natural-curve-viewing-fish-and-shrimp)

## Best For

- lucky critter enthusiasts

## Why This Product

- Trusted lucky critter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Safe:** Made from premium aquarium-safe plastic that won’t float or shift, ensuring long-lasting stability.
- • **Ultimate Hideout:** Perfect sanctuary for Plecos, Loaches, Corydoras, Betta Fish, and Shrimp to thrive and hide.
- • **Crystal Clear Viewing:** Unique tunnel design offers an immersive, up-close look at your aquatic friends in action.
- • **Seamless Natural Curve:** Blends effortlessly into your aquatic habitat for an authentic underwater vibe.
- • **Effortless Installation:** Simply slide under substrate—no complicated setup or burying needed.

## Overview

The Aquarium Underground Tunnel Cave Natural Curve is a 7-inch long, aquarium-safe plastic decor piece designed to provide a naturalistic hiding spot and immersive viewing experience for bottom-dwelling fish and shrimp. Its curved tunnel shape blends seamlessly into aquatic environments, offering easy installation under substrate without floating or shifting. Ideal for species like Plecos, Loaches, Corydoras, and Betta Fish, this durable cave enhances both fish comfort and tank aesthetics.

## Description

Buy Aquarium Underground Tunnel Cave Natural Curve | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Clown Loach, Pleco: Ornaments - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Awesome purchase for an aquarium - This is such a great product. Excellent price and immediately ready to use. I got these for some of my soon-to-be shrimp to give them a little hiding spot from the fish I’m putting in my aquarium. It looks great. Doesn’t float or move once setting it in the gravel. Totally recommend.
Review: Perfect in our 30-gallon aquarium - This has worked perfectly in our aquarium! It took a little work to get it under the gravel since we already had water in the aquarium, but we made it work. It's perfect for our bottom feeders and other fish as well. I would definitely recommend! It seemed very well made, so no problems with the quality. I got a great buy for a great price!

## Features

- The perfect Aquarium Underground Tunnel Cave for many types of fish such as Pleco, Loaches, Corydora Catfish, Betta Fish, Shrimp and much more! Easy install by moving substrate out of the way placing against the glass and moving the substate back around the cave.
- While being a great place to hide it also provides an incredible viewing experience for the fish tank owner. This addition to an aquarium aquascape will give the ability to view fish in an entire new way in their natural environment.
- The Aquarium Underground Natural Curve Tunnel Cave was made with natual cave insirpation in mind. The curve of the aquarium tunnel provides a natural look that blends into the aquatic habitat.
- The Aquarium Underground Tunnel Cave is made with aquarium safe plastic. It will also sink to the bottom of the aquarium so no need to try and bury it in the sand if not wanted. Size: 7" Length 3.5" Depth 2.25" Height. Cave entrance 2.25" Length 2.25" Width

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJ64VMY5 |
| Best Sellers Rank | #12,090 in Pet Supplies ( See Top 100 in Pet Supplies ) #24 in Aquarium Décor Thematic Ornaments |
| Brand | Lucky Critter |
| Collection Name | Spring |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (241) |
| Date First Available | September 28, 2024 |
| Finish Type | Smooth or Matte |
| Item Weight | 4 ounces |
| Item model number | 1 |
| Manufacturer | Lucky Critter |
| Material | Plastic |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Product Care Instructions | Warm Water |
| Product Dimensions | 3.5"D x 7"W x 2.25"H |
| Recommended Uses For Product | Aquarium Cave |
| Size | Medium |
| Style | Aquarium Cave |
| Theme | Aquarium |
| UPC | 198715538748 |

## Product Details

- **Brand:** Lucky Critter
- **Color:** Black
- **Material:** Plastic
- **Style:** Aquarium Cave
- **Theme:** Aquarium

## Images

![Aquarium Underground Tunnel Cave Natural Curve | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Clown Loach, Pleco - Image 1](https://m.media-amazon.com/images/I/817a9y0NmfL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome purchase for an aquarium
*by J***G on February 19, 2026*

This is such a great product. Excellent price and immediately ready to use. I got these for some of my soon-to-be shrimp to give them a little hiding spot from the fish I’m putting in my aquarium. It looks great. Doesn’t float or move once setting it in the gravel. Totally recommend.

### ⭐⭐⭐⭐⭐ Perfect in our 30-gallon aquarium
*by A***L on November 14, 2025*

This has worked perfectly in our aquarium! It took a little work to get it under the gravel since we already had water in the aquarium, but we made it work. It's perfect for our bottom feeders and other fish as well. I would definitely recommend! It seemed very well made, so no problems with the quality. I got a great buy for a great price!

### ⭐⭐⭐⭐⭐ Rem
*by D***S on December 28, 2025*

My fish love it and it easy to install

## Frequently Bought Together

- Aquarium Underground Tunnel Cave Natural Curve | Viewing Fish & Shrimp Under Gravel Tunnel | Fish Tank Decor Decoration Hideout Perfect for Corydora Catfish, Kuhli Loach, Clown Loach, Pleco
- Lucky Critter 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
- Shrimp Hides & Fish Cave - Aquarium Tunnel & Decor for Corner Tanks

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-04*