Collection: Auto Top Off

Here at Top Shelf Aquatics, we believe that if you want a product that automates an aspect of tank maintenance, an ATO is the number one priority. Evaporation within a tank is inevitable, and the salinity of your aquarium will rise as a result of the salt that is left behind when that water evaporates. Your fish and coral will be lot healthier, and your protein skimmers and other equipment will work much better, provided the water level in your aquarium or sump is kept consistent. In order to transfer water from a reservoir to your aquarium, Auto Top Off Systems typically involve a controller that links to one or more sensors and a connection for a pump. Your aquarium's sensors will be able to detect when the water level is becoming too low, at which point the pump will start pumping fresh water into the aquarium until the correct water level is reached.

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  • Smart ATO RO Water Reservoir Control - Autoaqua

    Translation missing: en.products.product.sku:B970155

    Vendor:
    Autoaqua

    Smart ATO RO Water Reservoir Control - Autoaqua

    Regular price
    $181.99
    Sale price
    $181.99
    Regular price
  • Micro Auto Top Off - PNW

    Translation missing: en.products.product.sku:914447F

    Vendor:
    PNW Custom

    Micro Auto Top Off - PNW

    Regular price
    $79.99
    Sale price
    $79.99
    Regular price
  • DIY Refill(ATO) + Bactoblend - Fauna Marin

    Translation missing: en.products.product.sku:9748908

    Vendor:
    Fauna Marin

    DIY Refill(ATO) + Bactoblend - Fauna Marin

    Regular price
    $12.99
    Sale price
    $12.99
    Regular price
  • Osmolator 3 Auto Top Off - Tunze

    Translation missing: en.products.product.sku:4712094475

    Vendor:
    Tunze

    Osmolator 3 Auto Top Off - Tunze

    Regular price
    $195.49
    Sale price
    $195.49
    Regular price
    $229.99
  • Osmolator Universal 3155 Auto Top Off - Tunze

    Translation missing: en.products.product.sku:M789665

    Vendor:
    Tunze

    Osmolator Universal 3155 Auto Top Off - Tunze

    Regular price
    $195.49
    Sale price
    $195.49
    Regular price
    $229.99
  • Replacement Osmolator Metering Pump - Tunze

    Translation missing: en.products.product.sku:N111525

    Vendor:
    Tunze

    Replacement Osmolator Metering Pump - Tunze

    Regular price
    $25.49
    Sale price
    $25.49
    Regular price
    $29.99
  • Osmolator Nano 3152 Auto Top Off - Tunze

    Translation missing: en.products.product.sku:E263286

    Vendor:
    Tunze

    Osmolator Nano 3152 Auto Top Off - Tunze

    Regular price
    $97.74
    Sale price
    $97.74
    Regular price
    $114.99
  • ATK V2 Auto Top Off Kit - Neptune Systems

    Translation missing: en.products.product.sku:7513717

    Vendor:
    Neptune Systems

    ATK V2 Auto Top Off Kit - Neptune Systems

    Regular price
    $239.99
    Sale price
    $239.99
    Regular price
  • Hydros ATO Kit - Hydros

    Translation missing: en.products.product.sku:HDRS-ATO-202H

    Vendor:
    Hydros

    Hydros ATO Kit - Hydros

    Regular price
    $79.99
    Sale price
    $79.99
    Regular price
  • ATO EZ Auto Top Off System - IceCap

    Translation missing: en.products.product.sku:IC-ATOEZ

    Vendor:
    IceCap

    ATO EZ Auto Top Off System - IceCap

    Regular price
    $89.99
    Sale price
    $89.99
    Regular price