Tunze Osmolator 3155 Automatic Top Off
The one and only, Tunze Osmolator 3155. Our personal favorite automatic top off on the market today. With many built-in safeties, you can’t go wrong with this unit. It’s not cheap but you get what you pay for! German aquarium engineering at its finest.
We highly recommend this top off if you are looking for one and this is our personal choice for an ATO on every reef tank in our store today.
For more information on this auto top off unit , check out the Tunze website.
TUNZE® Osmolator®
High-tech – for a reliable water level in the aquarium
In 1985 TUNZE® invented the automatic refill system for aquariums. At that time, some people regarded this invention as a useless accessory….but they forgot something very important: sensitive aquarium animals need a constant osmotic pressure within their cells. Tunze calls their ATO an Osmolator® (osmotic regulator) but it’s really just a fancy way of saying auto top off. It is super simple to install and comes as a compact unit. TUNZE® has been able to create the ultimate ATO over the course of their many years in the business. Their experience in the aquarium world is truly unmatched.
Ships complete with tubing, pump and power supply and magnetic mounts for sensors.You only need a reservoir and water.
The Controller 5017 displays all functions optically and sounds an alarm in case of failures.
Redundant security: the main sensor is a proprietary optic sensor. Should that fail a safety float switch shuts the unit off and sounds an alarm. Even if that fails, safety circuitry shuts off the pump after 10 minutes.
An optical mini sensor recognizes the water level precisely.
Easy to mount by Magnet Holder.