Blubber Cove Corner Aquarium Cave – Two-Piece Substrate Tunnel for Fish & Shrimp

A corner aquarium cave that sits flush against the glass and disappears into your substrate. This two-piece push-together design creates a low-profile tunnel hide — perfect for bottom dwellers that want a safe, enclosed space to retreat to.

Unlike bulky centrepiece caves, this one lives at the edge of the tank, freeing up the middle for plants and hardscape while still giving fish and shrimp a proper hideout. The two pieces slot together without tools and can be separated for cleaning.

Features

• Two-piece push-together construction — easy to assemble and clean
• Sits against the tank glass and buries into substrate naturally
• Suitable for fish, shrimp, axolotls, turtles, and reptiles
• Fish-safe, aquarium-grade plastic — no toxins, no sharp edges
• Made from eco-friendly material derived from recycled corn starch
• Available in Standard and Large — see specs below
• Five colour options: Black, White, Beige, Marble, Green
• UK-made in our Northumberland workshop

Specs

Standard (2 pieces slot together):
Piece 1 — 110mm (W) × 40mm (D) × 42mm (H)
Piece 2 — 150mm (W) × 40mm (D) × 42mm (H)
Tunnel openings — 35mm × 42mm

Large (2 pieces slot together):
Piece 1 — 135mm (W) × 52mm (D) × 48mm (H)
Piece 2 — 187mm (W) × 52mm (D) × 48mm (H)
Tunnel openings — 43mm × 53mm

FAQs

What fish is this suitable for?
Corydoras, loaches, kuhli loaches, smaller plecos, bettas, and most bottom-dwelling community fish. The Standard works well for nano and mid-size tanks; the Large suits cichlids, larger plecos, and axolotls.

Will it stay in place?
It rests in the substrate and against the glass — most fish don't disturb it. For sandy substrates, partially burying it helps anchor it further.

Is it safe for reptiles too?
Yes. The same design works well in vivarium and terrarium setups for leopard geckos, crested geckos, and similar species.