The TUNZE® Osmolator® 3 nano is a simple and safe device with just one sensor for maintaining a constant water level in aquarium systems up to approx. 250 liters (66 US gal.), can be placed...

Tunze Osmolator 3 The TUNZE Osmolator 3 is a simple and safe water level controller with optical control sensor and stand-alone thermal safety sensor for keeping a constant water level in freshwater and saltwater aquariums....

H2Ocean Compact Auto Top-Up This ultra-compact smart car top-up unit is simple to mount, easy to use and has twin optical sensors for added security. Features • Auto Top-Up Unit (ATO) • Compact Intelligent sensor...

Fauna Marin DIY REFILL + FREE 50 ml Bacto Blend Automatic water level control for all types of Aquaria On nano tanks, the water loss through evaporation is very high and the continuous refilling by...

The Turbelle® High Jet is a replacement dosing pump with safety extra low voltage 12 V DC for Osmolator® nano 3152 and Osmolator® 3155 and belongs to a new generation of centrifugal pumps with a...

Kamoer ATO ONE 2 SE is a smart water replenishing device ATO One 2 is an Intelligent water Replenishment device, is an upgraded version of ATO One. ATO One 2 SE is the standard version...

Ecotech Versa VX-1 A Precision Aquarium pump that does everything. Dosing, automatic topping up, changing water, even feeding. Accurately up to 2% or less and capable of several hundred ml. per minute the Versa ™...

Replacement Water Pump for SMART ATO top off security system and DD H2Ocean Auto top-up DP-200

ReefATO+ System The 3-in-1 ReefATO+ for every aquarium system! Exceptionally reliable and smart ATO, temperature monitor and leak detector. The ReefATO+ is designed to maintain a stable salinity and water volume in a reef aquarium...