Neptune Systems Apex DOS Dosing Pump & Fluid Metering System - Neptune Systems $299.95 A multi-purpose dosing and fluid delivery system of uncompromising quality combined with the simplicity of Apex Fusion software wizards for operations such as: 2-part dosing (Calcium and Alkalinity) Other additives dosing Automatic water... Add to Cart
Tunze Osmolator 3155 Auto Top Off - Tunze $199.99 High-tech, for a reliable water level in the aquarium Water level regulator with two sensors suitable for use in cabinet filters, in Comline filters or directly on the edge of the aquarium. Scope of delivery: Ready for mounting with power... Add to Cart
On Sale XP Aqua Duetto Dual-Sensor ATO Aquarium Auto-Top-Off System - XP Aqua $99.99 $119.99 With huge features jammed in a tiny package, the Duetto is the perfect ATO for your aquarium. XPAqua’s proprietary dual-optical sensor packs two precise level sensors in one incredibly small package. In addition to keeping your water level... Add to Cart
Neptune Systems Apex ATK V2 Automatic Top-Off Kit ATO (ATK) - Neptune Systems $199.95 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... Add to Cart
Tunze Osmolator Nano 3152 Auto Top Off - Tunze $99.99 For small aquariums, a stable osmotic balance is important, because they are particularly sensitive to constantly changing salt concentrations. The Osmolator nano which was specifically designed for this, is a water level controller with only a... Add to Cart
Icecap Dual Optical Auto Top Off (ATO) Controller - IceCap $126.99 An Auto Top Off (ATO) system is notably one of the most important pieces of equipment for a saltwater aquarium and simply a must have for any reef keeper. The IceCap ATO monitors and replenishes evaporated water eliminating the daily task of adding... Add to Cart
Finnex HC-810M Digital Temperature Controller (up to 800 Watts) - Finnex $48.99 The HC-0810M Finnex controller offers a precision digital control with LED digital display which maintains water temperatures at a constant level protecting your livestock from temperature fluctuations. Easily adjustable high/low temperature... Add to Cart
JBJ True Temp - Digital Heater Controller (up to 1000 Watt) - JBJ $79.99 JBJ introduces the TRUE TEMP digital heater controller, the most accurate and precise controller in the aquarium industry. The all new TRUE TEMP boasts amazing +/- 0.5 F accuracy, a calibration setting, smart memory chip, LED heating indicator, and a... Add to Cart
JBJ ATO Automatic Top Off - JBJ $79.99 Tired of lifting heavy buckets to refill sumps or tanks due to evaporation? There is finally a professional grade product that automates refilling evaporated water. The All-New A.T.O (Automatic Top Off) device is the most advanced water level controller... Add to Cart
Finnex HC-800V Analog Temperature Controller (up to 800 Watts) - Finnex $29.95 The HC-0800U Finnex electronic controller is equipped with a temperature dial allowing a temperature range from 68 - 92°F. Equipped with a temperature sensor, these units soundly provide stable environments for your aquarium lives. The three prong... Add to Cart
XP Aqua Ultimate 4-Sensor ATO Aquarium Auto-Top-Off System - XP Aqua $199.99 With 2 X dual-optical sensors, the Ultimate ATO is the first ATO to include 4 sensors. The 4 sensors allow us to design a dual-stage overfill alarm that is less intrusive as well as a run-dry protection feature that prevents your sump from running dry:... Add to Cart
Finnex HC-820M Digital Heater Controller +Sensor - Finnex $54.99 The HC-820M Finnex heater controller uses an advanced digital processor that monitors and controls the water temperature in your aquarium. The heating controller receives temperature data from the remote sensor in the aquarium. The remote... Add to Cart