Circularium Nano™ – 3.5 Gallon Aquaponic Cylinder Aquarium

Description

Small footprint. Full ecosystem.

Introducing the Circularium Nano™, the budget-friendly evolution of our signature aquaponic cylinder design. At 3.5 gallons, this compact powerhouse delivers the same active filtration and microgreen-growing functionality as its larger counterpart — in a size perfect for desktops, apartments, dorms, and starter aquaponic setups.

Designed with precision 3D-printed structural components, the Nano combines smart engineering with affordability — without sacrificing performance.

Active Under-Gravel Aquaponics Filtration

The Circularium Nano™ features a true active filtration system, not just passive flow:

1. Water is drawn from beneath the bottom screen under the gravel layer.

2. Beneficial bacteria colonize the substrate, breaking down fish waste.

3. A submersible pump pushes nutrient-rich water upward.

4. Water feeds the integrated top grow chamber.

5. Clean, filtered water returns to the tank.

This natural cycle supports:

• Cleaner water

• Reduced odor and buildup

• Healthier fish

• Thriving plant growth

• Lower maintenance requirements

Integrated Microgreen Grow Module

The top-mounted grow chamber allows you to cultivate:

• Microgreens

• Wheatgrass

• Small herbs

• Seedlings

Fish waste becomes plant nutrients. Plants help polish the water. The result is a beautifully balanced mini-ecosystem.

3 Convenient Feeding Holes

The Nano grow module includes three strategically placed feeding ports, allowing you to:

• Feed fish without removing the grow chamber

• Minimize disturbance to plants

• Maintain consistent routine

• Reduce spills and splashing

Thoughtful design makes daily care simple and efficient.

Sleek Cylindrical Design

• Vertical space-saving footprint

• 360° viewing experience

• Smooth, modern profile

• Ideal for desks, countertops, and small rooms

The cylinder shape promotes balanced water circulation while creating a striking visual display.

Precision 3D Printed Components

Engineered for reliability and affordability:

• Durable modular construction

• Clean matte gray finish

• Lightweight and sturdy

• Easy to assemble and maintain

Built smart. Built efficient. Built accessible.

Key Features

• 3.5 Gallon (13L) Capacity

• Active Under-Gravel Filtration

• Integrated Aquaponics Grow Chamber

• 3 Built-In Feeding Ports

• Compact Cylinder Design

• 360° Viewing

• Energy-Efficient Pump System

• Budget-Friendly Entry into Aquaponics

Specifications

• Capacity: 3.5 Gallons (13 Liters)

• Design: Cylindrical

• Filtration: Active Under-Gravel Aquaponics

• Grow Module: Top-mounted with 3 feeding holes

• Material: Clear tank body + 3D printed structural components

• Water Flow: Bottom draw → Top grow bed → Return circulation

• Electrical Usage: 120V 3W

What’s Included

• Circularium Nano™ 3.5 Gallon Cylinder Tank

• Under-Gravel Screen Base

• Submersible Pump

• Top Grow Module with 3 Feeding Ports

• Modular 3D Printed Components

Perfect For

• Beginners in aquaponics

• Betta or nano fish setups

• Students & small-space living

• Kitchen herb displays

• Affordable ecosystem décor

Why Choose Circularium Nano™

The Circularium Nano™ delivers the beauty of a living ecosystem in a compact, budget-friendly format. It filters, circulates, grows, and thrives — all in one elegant cylinder.

Circularium Nano™ – Small Tank. Smart Ecosystem. Big Impact.