Free Shipping!
Start Earning 5% on Future Purchases SEE DETAILS ›

Narrow Your Results:

Aquarium Size (gallons)
Sale Items

Auto Doser

59 products
Auto Top Off Controller
Starting at $79.99
*Automatically refills evaporated aquarium water*Maintains aquarium and sump water level to prevent pump damage*Save time and effort by automating aquarium top-offsAutomatically refill your sump or aquarium without lifting heavy buckets or spilling water. Floating sensors monitor water level and…
Auto Top Off Float Valve & Reservoir
Starting at $34.95
* Easy-to-install float valve for aquarium auto top off systems * Attach to a water source and install on your aquarium sump * Create an auto top off system that maintains aquarium water level Aquarium float valve kit offers a simple solution to maintain proper water level. Use the Eshopps Float…
Tunze Osmolator Universal 3155 Auto Top Off System
Starting at $99.99
…it's a health issue. Tunze Osmolator Universal 3155 Auto Top Off System was developed because Tunze knows the health of delicate aquatic life requires constant osmotic pressure. Short for Osmotic Regulator, the Tunze Osmolator is a high-tech auto top off kit that comes complete with an electronic…
Neptune Systems AquaController Apex AFS Auto Feeding System
Starting at $99.95
…accessory for your AquaController Apex Controller System and Neptune Systems AquaController Apex Jr System. Neptune Systems AquaController Apex AFS Auto Feeding System allows you to integrate any Apex-controlled aquarium equipment to your feeding strategy. In other words, you can create a feeding…
Eshopps IV Dosing Pump
Starting at $49.99
…program two-channel electronic aquarium dosing unit*Automate aquarium supplementation from 1ml to 1,999 ml*Expansion slave units upgrade aquarium doser up to an 8 channel unit2-channel electronic aquarium dosing unit automates and simplifies precision aquarium supplementation. Eshopps IV Dosing Pump…
Toms Aquarium Continuous Hatch 'N Feeder
Starting at $8.49
*Innovative in-tank brine shrimp hatchery for home aquariums*Inexpensively hatch live brine shrimp to feed aquarium inhabitants*Saltwater in the hatchery never mixes with aquarium waterHatch brine shrimp (sold separately) continuously in your marine OR freshwater aquarium. Unique design means…
Eshopps Pacific Reservoir Tank
Starting at $109.99
*Stylish large capacity reservoir for aquarium auto top off systems*Holds 5- or 10-gallons to replenish evaporated aquarium water *Built-in float valve allows full automation of aquarium top off processSmartly designed reservoir allows full automation of aquarium top off process. Eshopps Pacific…
Eheim TWINfeeder
Starting at $59.99
* Programmable automatic fish feeder with greater feeding options * Twin chambers hold two different types of fish foods * Easy way to provide a varied and nutritional diet for aquarium fish Intelligent, automatic fish feeder increases feeding options. Programmable feeder provides the best…
ATK Automatic Top-Off Kit by Neptune Systems
Starting at $199.95
*A complete and simple solution for replacing water lost to evaporation*Features three layers of redundant monitoring and water-level control*Standalone device -- APEX not necessary for use The Neptune ATK (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water…
Aqueon® 10W Submersible Mini Aquarium Heater
Starting at $9.99
…thermal safety auto shut-offKeep your fish at the ideal temperature with the Aqueon 10W Submersible Mini Aquarium Heater. Provides warmth for your tropical fish, this mini heater is designed with shatterproof housing for maximum durability and features thermal safety auto shut-off. Compact…
Auqa Gadget HydroFill Ti ATO Pump System
Starting at $69.99
…pump outputs up to 15 gallons per hour and max 5 feet of head*Versatile design offers 3 options for pump placement on your aquarium Pair your auto top off for your aquarium with the industry's first low voltage airlift pump specifically designed for ATO controllers. High performance, external…
Eheim "Feed-Air" Digital Automatic Feeder
Starting at $25.99
*Our favorite auto-feeder because it's so straightforward and easy to use*Automatic fish feeder's electronically controlled programming allows up to 4 daily feeding cycles of granule or flake fish foods*Integrated ventilator keeps fish food dry and prevents spoilageOur favorite auto-feeder because…
Fish Mate Automatic Feeder
Starting at $24.99
*Automatic aquarium fish feeder with 14 individual compartments*Dispenses up to 4 meals a day for convenient aquarium fish feedings*Create custom feeding using different tropical aquarium fish foodsFeeding you aquarium fish is easier than ever with the Fish Mate Automatic Feeder. Versatility is the…
Seachem Reef Kalkwasser
Starting at $14.2
…a kalkwasser solution that maintains calcium concentrations at natural seawater levels in your reef aquarium. Contains no phosphates. Use with a doser to dispense prepared kalkwasser. 500 grams makes 650 L. of kalkwasser solution.DirectionsNote: Never add this product directly into your aquarium.…
AutoAqua Smart ATO Micro Automatic Top Off System
Starting at $134.99
*Compact auto top-off system perfect for nano aquariums*Replenishes aquarium water lost through evaporation*Comes complete for quick and easy aquarium installationEffortlessly maintain proper water level in nano, pico, or smaller all-in-one aquarium systems. AutoAqua Smart ATO Micro Automatic Top…