🛡️ The Bunker🛡️

Attention, aquarium residents—your secret underwater headquarters is ready for occupancy! 🐠

The Bunker transforms your aquarium substrate into a hidden command center beneath the sand. Designed to sit against the aquarium glass, its round hatch-style surface entrance leads down into a spacious underground chamber with a naturally rocky interior.

The attached opening hatch gives this cave its unmistakable bunker look, while the large open viewing side creates a wide observation window against the aquarium glass. Your aquatic residents get a sheltered hideaway, and you get a clear view of whatever classified fish business is happening inside! 🫧

Once the flat roof is covered with substrate, only the round hatch remains visible above the sand or gravel. The chamber below disappears completely into the aquascape—like a secret underwater base hiding in plain sight.

✨ PRODUCT DETAILS

• One 3D-printed Bunker aquarium cave
• One round hatch-style surface entrance
• Attached opening hatch lid
• Spacious underground chamber
• Naturally textured rocky interior
• Wide open viewing side for watching through the aquarium glass
• Designed to sit flush against the inside of your aquarium glass
• Flat roof designed to be concealed beneath substrate
• Printed in durable PETG
• Available in three standard sizes
• Custom sizing available by request

📏 AVAILABLE SIZES

Small
Width: 146mm Depth: 88mm Height: 112mm

Medium
Width: 183mm Depth: 110mm Height: 140mm

Large
Width: 219mm Depth: 132mm Height: 167mm

All sizes are measured in their normal use orientation.

🎨 AVAILABLE COLORS

• Transparent — has a naturally frosted/translucent appearance when 3D printed
• Black
• White

✨ NEED A CUSTOM SIZE?

Every aquarium—and every aquatic resident—is different! If you need The Bunker adjusted to better fit your tank or aquarium resident, please message us before ordering. We’re happy to create custom sizes whenever possible.

🛡️ EASY TO ADD TO YOUR AQUASCAPE

Position the open viewing side flush against the inside of your aquarium glass, then surround and cover the chamber with substrate. Leave the round hatch above the substrate, and keep the hatch lid open and the entrance unobstructed whenever the cave is in use.

Choose a size whose hatch opening comfortably accommodates your aquarium residents.

Please rinse thoroughly with clean water before placing it in your aquarium. Avoid using soap or household cleaners.

This listing is for The Bunker cave only. Aquarium, substrate, rocks, plants, and animals shown in the photos are not included.

Because every cave is 3D printed, subtle layer lines and small cosmetic variations are a natural part of the printing process and make each piece unique.

Original design by Aquireef3D. Printed and sold under license by 5 Cats Prints & Things. 🐾