Automatic Top Off Systems for Reef Aquariums

Maintain the perfect water level in your marine aquarium with our auto top-off systems (ATO osmolators). These automated systems compensate for evaporation, preserve salinity, and ensure stable parameters for your reef tank.

Complete Auto Top Off Solutions

• Complete Auto Top Off Kits – Ready-to-install systems with pump, sensors and reservoir
• ATO Pumps – Reliable metering pumps for automatic filling
• Top-Off Tanks – Storage Containers for RO/DI Water
• DIY Components – Build Your Own Custom Top-Off Auto System

Why Use an Auto Top Off System?

Evaporation in reef aquariums causes salinity spikes that stress corals and fish. An automatic osmolator adds fresh water to maintain constant levels, protecting your animals and reducing maintenance.

Best Osmolator Brands

We offer the best ATO systems from Tunze, Red Sea, Kamoer and AutoAqua – trusted brands for reef aquarists in Canada, known for their reliability and accuracy.

Secure delivery throughout Canada. Free delivery available depending on the order amount.