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Underground Aquarium Cave Tunnel Hide – Medium & Large Sizes | Natural Fish Tank & Reptile Hideout Decoration
Underground Aquarium Cave Tunnel Hide – Medium & Large Sizes | Natural Fish Tank & Reptile Hideout Decoration
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Underground Aquarium Cave Tunnel – Medium & Large Sizes
Transform your tank with this underground aquarium tunnel — a natural-style hide that blends into your substrate and gives fish, shrimp, and reptiles a place to explore, rest, or breed. With a smooth curved opening and organic form, it's designed to sit partially or fully buried, creating a seamless and realistic look in aquariums or reptile setups.
Perfect for aquascaping and shrimp scapes, this tunnel is loved by bettas, corydoras, axolotls, turtles, and geckos alike. Handmade in the UK using strong, fish-safe plastic, it's suitable for both freshwater and saltwater tanks, or dry terrariums.
Choose from two sizes to suit your setup — both designed to maximise space while keeping your pets safe and happy.
✅ Underground design – hides beneath substrate for a clean, natural look
✅ Natural decor – adds realism to planted tanks, shrimp tanks, and reptile enclosures
✅ Fish & reptile safe – made from strong, non-toxic plastic for peace of mind
✅ Perfect for aquascaping – curved lip blends with rocks and soil
✅ Medium or Large sizes – to suit nano tanks and larger setups alike
⚖️ Sizes:
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Medium: 190mm (W) x 121mm (D) x 78mm (H) — 60mm opening
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Large: 234mm (W) x 150mm (D) x 97mm (H) — 81mm opening
Ideal for: bettas, corys, shrimp, axolotls, turtles, geckos, lizards, and other small fish or amphibians.
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from 1199 reviewsA+ Seller. Thank you so much :)
Quick delivery, items are as expected and good quality.
Got this as a gift for my husband and he loves it! Great quality and fits a ton of cards.
My betta loves to make his bubble nests in here. And while he is not a long finned fish and doesn’t use it for resting, he does love to hang out in it. Only additional thing I did was get different grit sandpaper to smooth out the inside so nothing like loose filament would catch on fins.
Well I brought it for frogs, snails and fish. Didn’t know if they’d take a liking to it as that isn’t the intended audience but… wish I could add multiple pictures. Everybody adores it! I tend to keep it fastened down to one particular spot, as they’re less responsive when it’s floating around everywhere. Glad they enjoy it!
Absolutely perfect, what I expected! Pepper enjoyed wearing it, he didn’t even try to take it off!
Product was a good gift and is sturdy, however it is noticeably 3D printed, but not that big a deal
This item is excellent and exactly as described. Perfect for my bettas. They love them.
Works great and is easy to clean. I like that it's a single piece. It floats well and doesn't kick up the sand. I'd previously purchased a stick on diffuser with a swappable base, and it's not nearly as user friendly.