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Aquarium Supplies
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JBJ Automatic Top Off (A.T.O.) System Water Level Controller

JBJ Automatic Top Off (A.T.O.) System Water Level Controller

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 advan...

$79.99
Tunze Osmolator Universal 3155

Tunze Osmolator Universal 3155

In 1985 TUNZE® invented the “auto top off” system. Critics initially derided the idea as an invention for lazy people… They missed the main point: delicate aquatic life requires a constant osmotic pressure. The Osmolator® - shor...

$209.99
Bubble Magus Tube Holder

Bubble Magus Tube Holder

Tube Holder for Bubble Magus Dosing Pumps (BM-T01, BM-T02). Bracket holder can be fixed on the aquarium wall and can hold up to 4 dosing tubes. A clean and convenient way to organize your dosing channels.

$14.99
Tunze Nano Osmolator 3152

Tunze Nano Osmolator 3152

The Tunze Nano Osmolator 3152 is an economical aquarium top off with more features than are typically found on competing units. The Tunze Nano Osmolator is great for nano aquariums and tanks up to 55 gallons. Featuring a ...

$106.99
AutoAqua Smart ATO - Automatic Top Off System

AutoAqua Smart ATO - Automatic Top Off System

Automatic Top Off System with Controller & Sensor in One What is Smart AFS Technology? The Smart ATO is a unique Auto Top Off system with a patent pending contact-less digital sensor that monitors and automates refilling eva...

$149.99
Bubble Magus BM-T01 Dosing Pump

Bubble Magus BM-T01 Dosing Pump

The Bubble Magus BM-T01 is an accurate micro-computer controlled, three-channel dosing pump. Can be used to automatically dose 2-part calcium/alkalinity additives , trace elements, magnesium, strontium, kalkwasser , or just abou...

$299.99
Innovative Marine AUQA Gadget HydroFill - ATO Controller System

Innovative Marine AUQA Gadget HydroFill - ATO Controller System

*ATO pump required and sold separately. Automate freshwater replenishment, and say farewell to heavy lifting, unstable water parameters, and the need to frequently watch your water line. Topping off evaporated water for our...

$198.99
Tunze Osmolator Replacement Metering Pump 5000.02

Tunze Osmolator Replacement Metering Pump 5000.02

Replacement Metering pump for Osmolator or Osmomat Metering pump capacity: 2.95ft: 13.74gph, 4.92ft: 12.42gph, 6.56ft: 7.13gph Max. Height: 7.22ft This pump runs on 9 volts DC

$23.49
Digital Aquatics Float Switch Kit w/ Mount

Digital Aquatics Float Switch Kit w/ Mount

The new Digital Aquatics float switch kits make configuration quick and easy! There are countless ways to use these new float switches with either your RKE or RKL system. Program an Auto Top Off (ATO) system, automate water trans...

$24.99
Innovative Marine AUQA Gadget HydroFill - ATO Pump System

Innovative Marine AUQA Gadget HydroFill - ATO Pump System

Pair your auto top off with the industry`s first low voltage air lift pump specifically designed for ATO (auto-top-off) controllers. *controller required and sold separately. The HydroFill ATO Pump System eliminates the guess...

$98.99
Digital Aquatics Double Float Switch Kit w/ Mounts

Digital Aquatics Double Float Switch Kit w/ Mounts

The new Digital Aquatics float switch kits make configuration quick and easy! There are countless ways to use these new float switches with either your RKE or RKL system. Program an Auto Top Off (ATO) system, automate water trans...

$55.49
Eshopps Float Valve Auto-Top

Eshopps Float Valve Auto-Top

This Float Valve can be either hung on the side of a sump or attach through a drilled hole in the side of your sump. The hand crafted acrylic hang-on frame allows for easy adjustment of the water level. The small compact float val...

$34.99
Digital Aquatics Float Switch Kit

Digital Aquatics Float Switch Kit

The new Digital Aquatics float switch kits make configuration quick and easy! There are countless ways to use these new float switches with either your RKE or RKL system. Program an Auto Top Off (ATO) system, automate water trans...

$15.99
AquaMaxx Dosing Container

AquaMaxx Dosing Container

Overview AquaMaxx Dosing Containers are stackable supplement storage solutions that connect to your dosing pump so you can automate supplementation and keep your aquarium water parameters stable at all times. AquaMaxx Dosing C...

From $39.99
Hydor Smart Level Control ATO System

Hydor Smart Level Control ATO System

Hydor Smart Level Control - water level management system Smart Level is the new versatile fully electronic water level controller designed by Hydor. Smart Level safely and easily handles the aquarium and sump water level due...

$89.99 $80.99
Bubble Magus Dosing Bracket

Bubble Magus Dosing Bracket

Bracket for Bubble Magus Dosing Pump (BM-T01, BM-T02) Can be mounted in to your aquarium stand/cabinet to hold the Dosing Pump.

$39.99
Ultralife Float Switch

Ultralife Float Switch

This float switch will operate for high water or low water applications. This can be achieved by simply removing the retaining ring and turning the barrel float upside down. This switch can handle multiple pumps with a combined am...

$79.99 $71.99
SpectraPure® Power Liquid Level Controller

SpectraPure® Power Liquid Level Controller

SpectraPure® Power Liquid Level Controller For automatic replenishment of evaporated liquid on systems which require AC electrical control Controls up to 3 Amp continuous duty pumps and other 115 Volt power heads Extre...

$69.99
Tunze Osmolator Storage Container 5002.25

Tunze Osmolator Storage Container 5002.25

TUNZE STORAGE CONTAINER 5002.25 Container with a capacity of 27 L (7.1 gallons); large cover opening to facilitate topping up and cleaning. Size for an open 600 l tank: fill lasts for approx. one week ø 34 x 43.5 cm For use...

$21.49
John Len Liquid Dosing Pump with AC Adapter

John Len Liquid Dosing Pump with AC Adapter

AquaHouse Dosing Pump with AC Adapter -Dependable & Accurate Aquarium Dosing Pump The AquaHouse peristaltic dosing pumps can be used for topping off water lost due to evaporation, dosing trace elements, two-part supplements,...

$89.99
Elos Osmocontroller Digital Water Level Controller

Elos Osmocontroller Digital Water Level Controller

OsmoController Digital The entirely new OSMOCONTROLLER Digital uses a patent pending sensor with no moving parts as the first measure of the water level in the SUMP. Most other systems will use multiple float switches or sensors t...

$199.99
Bubble Magus BM-T02 Dosing Pump Extension

Bubble Magus BM-T02 Dosing Pump Extension

The BM-T02 is an extension module for the Bubble Magus BM-T01 Dosing Pump. It adds 4 additional dosing channels (up to 2 BM-T02`s can be added to the BM-T01 for a total of 11 channels). The BM-T02 must be used with the BM-T01 and ...

$249.99
Aqua Medic SP 3000 Dosing pump

Aqua Medic SP 3000 Dosing pump

Peristaltic pump for all bypass filters and for dosing of trace elements The SP 3000 dosing pump is an economic peristaltic pump for pumping small volumes of water. It can be used with bypass filters such as the Aqua Medic Nitrat...

$118.99
SpectraPure® U.P.L.C. Ultra-Precise Level Controller II

SpectraPure® U.P.L.C. Ultra-Precise Level Controller II

SpectraPure® Ultra-Precise ATO holds your tank's salinity constant while adding replacement water or Kalc in small doses. The pump can operate in either "fill mode" or "drain mode" when the water level changes. The Sensor Tube can...

$229.99
Tunze Osmolator Calcium Dispenser 5074

Tunze Osmolator Calcium Dispenser 5074

Due to their growth, corals and algae consume the calcium dissolved in the water. The deficit caused can be compensated by the use of a calcium dispenser filled with calcium hydroxide and water. Conventional plants consist of lar...

$107.49
1 - 25 of 34
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