• A black rectangular fish tank tunnel insert, shown inside a planted aquarium with plants and decorative rocks.
  • A collage showing a black U-shaped fish tank accessory: one panel shows a hand holding the product, and three other panels show the accessory installed inside a planted aquarium with fish.
  • Black plastic fish food hopper placed on a gravel substrate inside an aquarium, with a blue graphic panel on the right showing three circular feature callouts labeled 'Plastic Material', 'Smooth Edge', and 'two passageways'.
  • A black acrylic aquarium cave or tunnel placed in a planted fish tank with sand substrate, rocks, driftwood, and small fish visible underneath. Blue text at the top reads 'Aquarium Cave Underground Tunnel' and 'Combine 2 or more pieces to create a labyrinth' and 'Low-profile tunnel for fish and shrimp.
  • A man sits on a sofa in a living room next to a small corner aquarium filled with green plants, rocks, sand, and several fish. The image includes a beige text banner at the top describing the corner design of the fish tank.
  • Black aquarium tunnel with inset showing fish tank setup
  • Black plastic L-shaped corner tank tunnel with dimension measurements shown on a blue water-themed background, with text reading 'Fits Any Rectangular Tanks' and small fish and reptile illustrations along the bottom.
  • Comparison of aquarium caves with fish and viewing space on a blue underwater-themed background.
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Aquarium Corner Tunnel with Two Entrances – Black

Aquarium Corner Tunnel with Two Entrances – Black

Aquarium Corner Tunnel with Two Entrances – Black

Add a below-substrate hideaway without losing the view. This black, L-shaped aquarium tunnel sits against the glass in a tank corner, creating a sheltered passage with two entrances above. Its open viewing sides let you watch suitably sized fish or shrimp explore from a different angle.

Why I Chose This

I like how this design turns a quiet corner into part of the display. Nestle it into your aquascape, arrange substrate around the covered passage, and leave both entrances clear. The black finish contrasts neatly with plants and pale sand, while the glass-side view brings the hidden part of the layout into sight.

Features
  • L-shaped design for placement against two adjoining glass panels
  • Two raised entrances connected by a covered passage
  • Open viewing sides use the aquarium glass as the viewing boundary
  • Black plastic construction with smooth-edged styling
  • Removable design for access during routine cleaning
Dimensions & Fit
  • Overall size: approximately 4.96 × 4.96 × 2.2 inches / 12.6 × 12.6 × 5.6 cm
  • Material: plastic
  • Color: black
  • Listed weight: 2.11 ounces
  • Designed for a compatible right-angle tank corner

Choose for animals that can move comfortably through the entire passage. Check entrance and internal clearance against their adult size before use; overall dimensions are not entrance measurements.

What's Included
  • 1 black aquarium corner tunnel with two entrances
Placement & Care
  • Rinse before use and inspect all surfaces and edges
  • Position flush against compatible tank glass, checking for gaps where animals could become trapped
  • Arrange substrate around the covered section while keeping both entrances clear
  • Keep heavy rocks and other loads independently supported
  • Check the passage regularly for trapped debris and remove carefully for cleaning, making sure animals have exited first
Estimated Shipping
  • Processing Time: 1–2 days before shipping
  • Estimated Delivery: 3–10 business days worldwide
  • Free Shipping: On all orders $35+
  • Tracking: Provided with every order
FAQ

How does the viewing side work?
The tunnel has open sides that sit against the aquarium glass, allowing you to see into the passage from outside the tank.

How big is it?
The overall size is approximately 4.96 × 4.96 × 2.2 inches / 12.6 × 12.6 × 5.6 cm. Check passage clearance separately for your animals.

Where should I place it?
Fit it against two adjoining glass panels in a compatible tank corner. Arrange substrate around the covered passage and leave both raised entrances accessible.

Can fish and shrimp use it?
It offers a sheltered passage for suitably sized fish or shrimp. Choose based on adult body size and the ability to enter, turn, and exit comfortably.

How many tunnels come in the package?
One black, dual-entrance corner tunnel.

Can I remove it for cleaning?
Yes. Check that all animals have exited, lift it carefully, and clean it as part of your regular aquarium maintenance.

$13.99 USD
$20.00 USD $13.99 USD
Oferta Agotado
Los gastos de envío se calculan en la pantalla de pago.

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