Auto Top Offs

The ATK (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water lost to evaporation. The new aquarium hobbyist has many challenges, but none is more annoying than the chore of adding water, every day, to make up for...

Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor. A constant water level keeps the salt concentration constant in seawater aquariums. Incl. Turbelle® High...

The ReefATO+ sensor requires the electrical conductivity levels that are typical for seawater to work properly and therefore this system will not work for freshwater systems. The ReefATO+ is an exceptionally reliable auto top-off system that includes a...

Innovative 2 in 1 Auto-Top-Off and Auto-Water-Change system achieves the aims of automatic tank maintenance. With precise and smooth DC Diaphragm pump, Smart AWC Lite is the ideal for any aquariums under 150 gallons.   INTEGRATE DESIGN ●...

Trigger Systems Titanium ATOs are one of the best looking ATOs on the market. They match perfectly to the Titanium line of sumps. These ATOs have built in LEDs along with a LED remote and a holder for the remote that can be installed on the left or...

Freshwater Reservoir For Storing Auto-Top-Off Water IceCap Freshwater Reservoirs are designed to hold a fixed amount of top-off water for your ATO system. The reservoir is fully enclosed to prevent dust and debris from entering and to minimize...

Features: Quality Hand Crafted Acrylic Front viewing window with water level indicator White walls preventing algae from lessening light penetration Model: H2012 Dimensions: 12x15x16" Volume: 12 Gallons