{"title":"XP Aqua","description":null,"products":[{"product_id":"xp-aqua-sumpless-ato2","title":"XP Aqua Sumpless ATO2","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eXP Aqua Sumpless ATO2\u003c\/h2\u003e\n\u003cp\u003eXP Aqua Sumpless ATO2 is a complete automatic top-off and surface-skimming system designed specifically for aquariums without sumps. It combines XP Aqua's dual-optical sensor ATO with a magnetic Flexi overflow box, surface skimmer, media chamber, ATO pump, and reversible DC pump to help stabilize water level while improving surface clarity.\u003c\/p\u003e\n\u003ch3\u003eXP Aqua Sumpless ATO2 for Aquariums Without Sumps\u003c\/h3\u003e\n\u003cp\u003eMost automatic top-off systems work best in a stable sump chamber, but many aquariums do not have a sump. The Sumpless ATO2 solves that problem by using a dedicated overflow box inside the display aquarium. As evaporation lowers the level in the box, the dual-optical sensor ATO replaces freshwater from the reservoir while the overflow box also helps skim oily surface film.\u003c\/p\u003e\n\u003ch3\u003eSumpless ATO and Surface Skimmer Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for sumpless aquariums:\u003c\/strong\u003e Built for display tanks and aquarium setups that do not have a traditional sump chamber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-optical sensor ATO:\u003c\/strong\u003e Uses XP Aqua's compact dual optical sensor for precise water-level control with a secondary failsafe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent pre-programmed control:\u003c\/strong\u003e Built-in controller programming helps protect against overfilling without user programming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface-skimming overflow box:\u003c\/strong\u003e The Flexi overflow box helps remove oily surface film and improve gas exchange.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated media chamber:\u003c\/strong\u003e The overflow box can also hold suitable filtration media such as carbon, GFO, or other media chosen for the aquarium.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play design:\u003c\/strong\u003e All core operating parts are included for a complete sumpless ATO installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks in complete darkness:\u003c\/strong\u003e Optical sensor operation does not depend on aquarium light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic mounting:\u003c\/strong\u003e Sensor and overflow components mount cleanly on suitable aquarium glass.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSumpless ATO2 Pump and Overflow Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Sumpless automatic top-off system with surface skimmer and media chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Freshwater, saltwater, reef, and display aquariums without sumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower input:\u003c\/strong\u003e 100-240 VAC, 50-60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATO DC pump head:\u003c\/strong\u003e 8.2 ft \/ 250 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATO DC pump flow rate:\u003c\/strong\u003e 74 gph \/ 280 lph\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexi reversible DC pump head:\u003c\/strong\u003e 6.5 ft \/ 200 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexi reversible DC pump flow rate:\u003c\/strong\u003e 74 gph \/ 280 lph\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexi overflow box dimensions:\u003c\/strong\u003e 3.94\" x 2.17\" x 6.30\" \/ 100 x 55 x 160 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum media chamber volume:\u003c\/strong\u003e 3.74\" x 1.99\" x 1.97\" \/ 95 x 50.5 x 50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-der Stick Ultra Media dimensions listed by J\u0026amp;L:\u003c\/strong\u003e 3.54\" x 1.5\" x 1.89\" \/ 90 x 38 x 48 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum mounting thickness:\u003c\/strong\u003e 1\/2\" \/ 12.7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater reservoir:\u003c\/strong\u003e Sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSumpless Aquarium Planning Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest application:\u003c\/strong\u003e Aquariums without sumps that still need automatic freshwater replacement and surface-film control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface level planning:\u003c\/strong\u003e The Flexi overflow box must be mounted at the correct display water level so it can skim the surface and let the ATO sensor read properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia chamber use:\u003c\/strong\u003e Use only appropriate aquarium filtration media and avoid packing the chamber so tightly that flow becomes restricted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir safety:\u003c\/strong\u003e Use a clean freshwater reservoir and route tubing so it cannot siphon or dump uncontrolled freshwater into the aquarium.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance access:\u003c\/strong\u003e Mount the overflow box where the media chamber, pumps, and sensors can be inspected and cleaned easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor reliability:\u003c\/strong\u003e Keep the sensor area free of algae, trapped bubbles, salt creep, and debris.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eXP Aqua Sumpless ATO2 Setup Directions\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eChoose a display-tank location with enough clearance for the Flexi overflow box, magnets, tubing, and pump cables.\u003c\/li\u003e\n\u003cli\u003eMount the Flexi overflow box on clean aquarium glass within the supported 1\/2\" thickness range.\u003c\/li\u003e\n\u003cli\u003eInstall the dual optical sensor in the overflow box according to the XP Aqua instructions.\u003c\/li\u003e\n\u003cli\u003ePlace the ATO pump in a clean freshwater reservoir and route the top-off line securely to the system.\u003c\/li\u003e\n\u003cli\u003eInstall the Flexi reversible DC pump and confirm water is moving correctly through the overflow box and media chamber.\u003c\/li\u003e\n\u003cli\u003eAdd the included media or other suitable media without overpacking the chamber.\u003c\/li\u003e\n\u003cli\u003eCheck that the outlet tubing cannot siphon freshwater after the ATO pump turns off.\u003c\/li\u003e\n\u003cli\u003ePower the system and run several test cycles before relying on it unattended.\u003c\/li\u003e\n\u003cli\u003eClean the overflow box slots, media chamber, sensor, and pumps regularly to maintain stable operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eXP Aqua Sumpless ATO2 controller with dual-optical sensor\u003c\/li\u003e\n\u003cli\u003eFlexi overflow box with magnetic mount\u003c\/li\u003e\n\u003cli\u003eATO DC pump\u003c\/li\u003e\n\u003cli\u003eFlexi reversible DC pump\u003c\/li\u003e\n\u003cli\u003ePower adapter\u003c\/li\u003e\n\u003cli\u003eTop-off tubing and installation accessories\u003c\/li\u003e\n\u003cli\u003e1-der Stick Ultra Media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"XP Aqua","offers":[{"title":"Default Title","offer_id":50289922933024,"sku":"XPA-ATOS","price":259.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8222\/5696\/files\/sumplessato2_1.jpg?v=1784141094"},{"product_id":"xp-aqua-ato-replacement-dc-pump","title":"XP Aqua ATO Replacement DC Pump","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eXP Aqua ATO Replacement DC Pump\u003c\/h2\u003e\n\u003cp\u003eXP Aqua ATO Replacement DC Pump is a genuine replacement top-off pump for compatible XP Aqua automatic top-off systems. It restores freshwater delivery when the original ATO pump is worn, damaged, clogged, or no longer operating correctly.\u003c\/p\u003e\n\u003ch3\u003eReplacement Pump for XP Aqua ATO Systems\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement DC pump for compatible XP Aqua ATO installations.\u003c\/li\u003e\n\u003cli\u003eUsed to move freshwater from the reservoir to the aquarium, sump, or rear chamber.\u003c\/li\u003e\n\u003cli\u003eCompact low-voltage pump for automatic top-off service and repair.\u003c\/li\u003e\n\u003cli\u003eListed flow rate: 74 gph \/ 280 lph.\u003c\/li\u003e\n\u003cli\u003eListed maximum head: 8.2 ft \/ 250 cm.\u003c\/li\u003e\n\u003cli\u003ePower: 4.8 W at 12 VDC.\u003c\/li\u003e\n\u003cli\u003eDC pump connector: DC 5.5 x 2.5 mm male.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eATO Pump Replacement Notes\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm compatibility with the existing XP Aqua ATO controller before installation.\u003c\/li\u003e\n\u003cli\u003eDisconnect power before removing the old pump.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement pump in a clean freshwater reservoir.\u003c\/li\u003e\n\u003cli\u003eReconnect the tubing securely and confirm the outlet cannot siphon after the pump stops.\u003c\/li\u003e\n\u003cli\u003eRun several test top-off cycles before leaving the ATO system unattended.\u003c\/li\u003e\n\u003cli\u003eInspect the pump, tubing, and reservoir regularly during maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eXP Aqua ATO Replacement DC Pump\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"XP Aqua","offers":[{"title":"Default Title","offer_id":50289924079904,"sku":"XPA-ZPATODC","price":47.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8222\/5696\/files\/xpa-zpatodc.jpg?v=1784141095"},{"product_id":"xp-aqua-flexi-reversible-dc-pump","title":"XP Aqua Flexi Reversible DC Pump","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eXP Aqua Flexi Reversible DC Pump\u003c\/h2\u003e\n\u003cp\u003eXP Aqua Flexi Reversible DC Pump is a genuine replacement pump for compatible XP Aqua Flexi and Sumpless ATO2 applications. It is used to restore water movement through the Flexi overflow, media chamber, or related XP Aqua setup where the original reversible DC pump requires replacement.\u003c\/p\u003e\n\u003ch3\u003eReplacement Flexi Reversible DC Pump\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement reversible DC pump for compatible XP Aqua Flexi and Sumpless ATO2 installations.\u003c\/li\u003e\n\u003cli\u003eHelps restore circulation through the overflow box or media chamber in compatible setups.\u003c\/li\u003e\n\u003cli\u003eCompact 12 VDC pump for service and repair use.\u003c\/li\u003e\n\u003cli\u003eListed flow rate: 74 gph \/ 280 lph.\u003c\/li\u003e\n\u003cli\u003eListed maximum head: 6.5 ft \/ 200 cm.\u003c\/li\u003e\n\u003cli\u003ePower: 4.8 W at 12 VDC.\u003c\/li\u003e\n\u003cli\u003eListed lifetime: 20,000 hours.\u003c\/li\u003e\n\u003cli\u003eCable length: 6 ft \/ 180 cm.\u003c\/li\u003e\n\u003cli\u003eDC pump connector: DC 5.5 x 2.5 mm male.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFlexi Pump Replacement Notes\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm compatibility with the existing XP Aqua Flexi or Sumpless ATO2 setup before installation.\u003c\/li\u003e\n\u003cli\u003eDisconnect power before removing the old pump.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement pump in the correct orientation for the application.\u003c\/li\u003e\n\u003cli\u003eConfirm tubing, fittings, and the media chamber are clear before restarting the system.\u003c\/li\u003e\n\u003cli\u003eRun the pump and check that water is moving correctly through the overflow or chamber.\u003c\/li\u003e\n\u003cli\u003eInspect and clean the pump regularly to prevent reduced flow from debris or buildup.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eXP Aqua Flexi Reversible DC Pump\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"XP Aqua","offers":[{"title":"Default Title","offer_id":50289923850528,"sku":"XPA-ZPPFRDC","price":35.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8222\/5696\/files\/xpa-zppfrdc.jpg?v=1784141095"},{"product_id":"xp-aqua-duetto-2-replacement-controller","title":"XP Aqua Duetto 2 Replacement Controller","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eXP Aqua Duetto 2 Replacement Controller\u003c\/h2\u003e\n\u003cp\u003eXP Aqua Duetto 2 Replacement Controller is a genuine replacement controller and sensor assembly for compatible XP Aqua Duetto and Duetto 2 automatic top-off systems. It is used to service an existing ATO setup while reusing compatible pump, tubing, power, and mounting components as applicable.\u003c\/p\u003e\n\u003ch3\u003eDuetto and Duetto 2 ATO Controller Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine replacement part for XP Aqua Duetto and Duetto 2 ATO systems.\u003c\/li\u003e\n\u003cli\u003eIncludes the controller and optical sensor assembly for water-level control.\u003c\/li\u003e\n\u003cli\u003eHelps restore ATO operation when the original controller or sensor assembly requires replacement.\u003c\/li\u003e\n\u003cli\u003ePower input: 100-240 VAC, 50-60 Hz.\u003c\/li\u003e\n\u003cli\u003eDC output: 12 VDC \/ 1.0 A.\u003c\/li\u003e\n\u003cli\u003eMaximum mounting thickness: 1\/2\" \/ 12.7 mm.\u003c\/li\u003e\n\u003cli\u003eSensor size: 0.78\" x 0.78\" x 0.98\" \/ 20 x 20 x 25 mm.\u003c\/li\u003e\n\u003cli\u003eLength of cable between sensor and controller: 6 ft \/ 180 cm.\u003c\/li\u003e\n\u003cli\u003eNot a complete ATO kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eController Replacement Notes\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm the existing ATO system is compatible before installation.\u003c\/li\u003e\n\u003cli\u003eDisconnect power before removing the old controller or sensor assembly.\u003c\/li\u003e\n\u003cli\u003eMount the replacement sensor on clean glass within the supported thickness range.\u003c\/li\u003e\n\u003cli\u003eReconnect the compatible pump and power components according to the XP Aqua instructions.\u003c\/li\u003e\n\u003cli\u003eAvoid placing the sensor in areas with microbubbles, direct light, turbulence, or salt creep buildup.\u003c\/li\u003e\n\u003cli\u003eTest several top-off cycles before relying on unattended operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eXP Aqua Duetto 2 Replacement Controller\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"XP Aqua","offers":[{"title":"Default Title","offer_id":50289997775136,"sku":"XPA-ZPD2CONT","price":143.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8222\/5696\/files\/duettocontroller.jpg?v=1753840200"},{"product_id":"xp-aqua-duetto2-ato-system","title":"XP Aqua Duetto2 ATO System","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eXP Aqua Duetto2 ATO System\u003c\/h2\u003e\n\u003cp\u003eXP Aqua Duetto2 ATO System is a compact automatic top-off system for freshwater, saltwater, and reef aquariums. It uses a tiny dual-optical sensor, intelligent QST programming, and a included DC top-off pump to help keep aquarium or sump water level stable while reducing the risk of overfilling.\u003c\/p\u003e\n\u003ch3\u003eXP Aqua Duetto2 for Precise Aquarium Auto Top-Off\u003c\/h3\u003e\n\u003cp\u003eStable water level is especially important in reef aquariums because evaporation removes freshwater while leaving salt behind. The Duetto2 automatically replaces evaporated freshwater from a separate reservoir, helping maintain more consistent salinity, sump level, return pump operation, and equipment performance between manual refills.\u003c\/p\u003e\n\u003ch3\u003eDual Optical Sensor ATO Protection Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-optical sensor design:\u003c\/strong\u003e Two precise optical level sensors are packed into one very small sensor body for compact installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo layers of overfill protection:\u003c\/strong\u003e The primary sensor maintains water level while the secondary optical sensor provides added protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent QST programming:\u003c\/strong\u003e Built-in controller logic works with the sensors to help prevent overfilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-play setup:\u003c\/strong\u003e No programming or manual adjustment is required for normal operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks in darkness:\u003c\/strong\u003e Optical sensing does not require aquarium lighting to function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic sensor mount:\u003c\/strong\u003e The sensor can be mounted and adjusted easily on suitable aquarium or sump glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall installation footprint:\u003c\/strong\u003e The compact sensor is useful in sumps, rear chambers, and tight ATO sensor locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater top-off stability:\u003c\/strong\u003e Helps reduce salinity swings caused by evaporation in marine and reef systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDuetto2 Pump and Mounting Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Automatic top-off system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Freshwater, saltwater, reef, sump, and rear-chamber top-off control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower input:\u003c\/strong\u003e 100-240 VAC, 50-60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded pump:\u003c\/strong\u003e XP Aqua ATO DC pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump flow rate:\u003c\/strong\u003e 74 gph \/ 280 lph\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump maximum head:\u003c\/strong\u003e 8.2 ft \/ 250 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum mounting thickness:\u003c\/strong\u003e 1\/2\" \/ 12.7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor type:\u003c\/strong\u003e Dual optical water level sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e Preset automatic operation with no user programming required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir:\u003c\/strong\u003e Freshwater reservoir sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDuetto2 Aquarium Installation Planning Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest installation point:\u003c\/strong\u003e Place the sensor where water level changes from evaporation are consistent, such as a return pump chamber or stable rear filtration chamber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir sizing:\u003c\/strong\u003e Use a clean freshwater reservoir sized for the aquarium's normal evaporation rate without creating excessive risk if misconfigured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-siphon setup:\u003c\/strong\u003e Route the top-off line and siphon break correctly so freshwater cannot continue siphoning after the pump stops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor cleanliness:\u003c\/strong\u003e Keep the optical sensor free of algae, film, salt creep, bubbles, and debris for reliable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturn chamber safety:\u003c\/strong\u003e Avoid placing the sensor in turbulent areas where bubbles or splashing can cause unstable readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eXP Aqua Duetto2 Setup Directions\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eChoose a stable water-level location in the aquarium, sump, or rear chamber where evaporation causes the water level to drop predictably.\u003c\/li\u003e\n\u003cli\u003eMount the dual optical sensor with the magnetic holder on clean glass within the supported thickness range.\u003c\/li\u003e\n\u003cli\u003ePlace the ATO pump in a clean freshwater reservoir.\u003c\/li\u003e\n\u003cli\u003eRoute the top-off tubing to the aquarium or sump and secure the outlet so it cannot move, fall out, or siphon unintentionally.\u003c\/li\u003e\n\u003cli\u003eInstall the siphon break according to the XP Aqua instructions and confirm it is positioned correctly.\u003c\/li\u003e\n\u003cli\u003eConnect the pump, sensor, controller, and power supply according to the manual.\u003c\/li\u003e\n\u003cli\u003eTest several top-off cycles before leaving the system unattended.\u003c\/li\u003e\n\u003cli\u003eInspect the sensor, pump, tubing, siphon break, and reservoir during regular maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eXP Aqua Duetto2 controller with dual-optical sensor\u003c\/li\u003e\n\u003cli\u003eMagnetic sensor mount\u003c\/li\u003e\n\u003cli\u003eATO DC pump\u003c\/li\u003e\n\u003cli\u003ePower supply\u003c\/li\u003e\n\u003cli\u003eTop-off tubing\u003c\/li\u003e\n\u003cli\u003eSiphon break\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"XP Aqua","offers":[{"title":"Default Title","offer_id":50290036932896,"sku":"XPA-ATODDS2","price":219.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8222\/5696\/files\/duetto2_1.jpg?v=1781028949"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/8222\/5696\/collections\/xpaqua-banner.png?v=1791721711","url":"https:\/\/aquariumsupplydirect.com\/collections\/xp-aqua.oembed","provider":"J\u0026L Aquatics - Aquarium Supply Direct","version":"1.0","type":"link"}