Designed for serious aquarists who value both function and form, this Hide is a purpose-built 3D printed aquarium/ terrarium shelter created to support natural behaviors. With a low-profile, cave-style footprint and smooth internal surfaces, this den provides a secure retreat for shy, territorial, or bottom-dwelling animals while blending effortlessly into modern aquascapes.

At ACT 3D Limited, we specialise in precision 3D printed aquarium décor that is practical, safe, and visually clean — trusted by hobbyists who want more than generic tank ornaments.

⭐ Why Aquarists Choose This Design

✔ Designed specifically for brackish aquarium environments

✔ Encourages natural hiding, resting, and denning behaviour

✔ Smooth interiors help prevent damage to fins and skin

✔ Open structure promotes healthy water flow

✔ Subtle, natural design that suits biotope and planted tanks

✔ Professionally 3D printed using aquarium-safe materials

🐠 Ideal For

Brackish fish & amphibians

Gobies, puffers, and similar species

Shy or stress-prone aquatic animals

Natural, minimalist aquascapes

Freshwater setups seeking realistic hides

🧪 Materials & Aquarium Safety

Manufactured using aquarium-safe, inert 3D printing materials

Safe for long-term submersion once rinsed

Will not leach harmful chemicals into your tank

Designed for easy cleaning and maintenance

📐 Sizes & Customisation

Multiple size options available via dropdown

- Small (100mm x 80mm x 64mm)

- Medium (150mm x 120 x 96mm)

- Large (200mm x 160mm x 130mm)

Custom scaling may be available.

🖨️ Made to Order

Each den is printed to order with care and precision.

Due to the nature of 3D printing, slight layer lines or surface variations may occur — these do not affect safety or performance and make each piece unique.

🧠 ACT 3D Limited – Specialist Aquarium Prints

We partner with leading aquatic designers to bring licensed, professional-grade aquarium décor to hobbyists who care about quality, safety, and thoughtful design.