Tunze Osmolator Nano 3152

Tunze Osmolator Nano 3152: Automatic Water Top-Off Made Easy

The Tunze Osmolator Nano 3152 delivers reliable, automatic top-off performance specifically designed for aquariums under 55 gallons. With smart safeguards and an easy plug-and-play setup, it’s the ideal ATO for smaller reef and freshwater systems.

Compact, Accurate, and Safe

Don’t let its size fool you—this ATO packs serious smarts and safeguards into a nano footprint.

Key Features:

• Anti-Overfill Technology: Shuts off pump after 5 minutes of continuous run time

• Float-Based Sensor: Simple, mechanical design keeps things fail-safe

• Run-Dry Protection: Automatically protects the pump if the reservoir runs out

• Preset Control: No programming required—just plug it in and let it run

• For Smaller Tanks: Works ideally in aquariums up to 55 gallons in size

What’s included in the Tunze Osmolator Nano Packaging?

Everything needed for setup comes in the kit—no extra trips to the hardware store required.

• Tunze 5000.020 Metering Pump

• Control Unit

• Power Adapter

• 3m (approx. 10ft) Hose

• Magnet Mount (holds sensors up to 10mm thick glass)

• Protective Sensor Cover

Tunze Osmolator Nano Specifications at a Glance

Perfect for nano reefs, desktop aquariums, and compact builds.

Tech Specs:

• Max Head Height: 7.0 feet

• Tubing: 7mm outer diameter, 4mm inner diameter

• Tubing Length: 2 meters

• Pump Dimensions: 4" long x 2" diameter

• Magnet Mount Diameter: 2-1/8"

• Tank Glass Thickness: Up to 3/8"

• Power Use: Low-voltage, safe for aquarium environments

Built for Simplicity and Peace of Mind

This ATO doesn’t come with unnecessary bells and whistles—it just works. If you're tired of manually topping off or worrying about evaporation swings, this is the no-fuss upgrade you’ve been waiting for.

Benefits:

• Maintains Stable Water Levels: Minimizes salinity swings and stress on livestock

• Easy Setup: Installs in minutes—no special tools required

• Secure Mounting: Magnetic holder keeps the float steady and aligned

• Reliable Build: Backed by a 2-year warranty from Tunze

Final Word on the Tunze Osmolator Nano 3152

The Tunze Osmolator Nano 3152 takes the guesswork out of water level control in compact aquariums. It’s a dependable, low-maintenance solution that keeps your tank stable—whether you’re at work, asleep, or on vacation.

• Tunze auto top-off solutions
• Aquarium control and monitoring systems
• Nano ATO systems