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    …slim ATO reservoirs make the perfect space-saving addition to any aquarium system. Features Only 4 wide -- ideal for tight cabinet spaces 1/4 black acrylic construction Clear front panel to check water level Beveled edges Hinged flip-top lid with knob 1.25 hole for cord placement Fits all ATO pumps…

    $135.00 Regular Price: $
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    …reservoir size An Auto Top Off container is perfect for holding a fixed amount of top off water. An appropriately sized ATO reservoir would be able to supply your tanks ATO needs for a few days if not weeks, while not being too large to cause a big salinity swing or flood the sump if the top off…

    $129.99 Regular Price: $

    …the Tunze Comline filters are the perfect choice. Features: Extremely compact & quiet Versatile media chamber Compatible with Osmolator 3155 ATO Surface skimming overflow Adjustable Comline energy-saving pump Patented magnetic mount The Comline 3168 is Tunze's largest and most powerful internal…

    $164.99 Regular Price: $

    …Water Tank is a perfect addition to hold water for your automatic top-off, and is generously sized to minimize how often you need to refill. The clear front panel also features graduated volume markings so you can track your water consumption. Royal has also provided easy ways to add an ATO pump or…

    $599.99 Regular Price: $

    …pH of your aquarium to helping purify your ATO water even further, there are plenty of reasons to add kalkwasser to your ATO reservoir or set up a Kalk reactor or drip system.By far the most common application for kalkwasser is by adding it to your tanks top offreservoirand then relying on the auto…

    $38.99 Regular Price: $
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    …reservoir as needed. Each ATO reservoir has two 0.25” OD holes for tubes to be plumbed through, or wires for float switches. The Sapphire, Ruby, and Emerald line of ATO reservoirs have laser engraved water level markings so you can monitor how much water your tank is using. Dimensions:…

    $124.99 Regular Price: $

    …OD holes for ato plumbing or wires for float switches. Dimensions: 10” long x 16” wide x 15” tall An Auto Top Off container is perfect for holding a fixed amount of top off water. An appropriately sized ATO reservoir would be able to supply your tanks ATO needs for a few…

    $189.99 Regular Price: $

    …clean the reservoir as needed. Each ATO reservoir has two 0.25” OD holes for tubing or wires for float switches. The Sapphire, Trigger, Ruby, and Emerald line of ATO reservoirs have laser engraved water level markings so you can monitor how much water your tank is using. Dimensions: 10”…

    $198.99 Regular Price: $

    …and clean the reservoir as needed. Each ATO reservoir has two 0.25” OD holes for tubing or wires for float switches. The Sapphire, Ruby, and Emerald line of ATO reservoirs have laser engraved water level markings so you can monitor how much water your tank is using. Dimensions: 6” long x…

    $129.99 Regular Price: $

    …120V AC, 60Hz Return Pump Flow Rate: 74GPH ATO DC Pump Max Head: 8.2 ft ATO DC Pump Flow Rate: 74 gph Controller Dimensions - 2.2" H x .88" W x 1.9" L Sensor Cable Length - 10 feet Pump Cable Length - 69 inches Flexi Overflow Box: 3.94" x 2.17" x 6.30" Max Tank Mounting Thickness: 1/2" Max Volume of…

    $149.99 Regular Price: $

    The Tunze Osmolator Nano 3152 Auto Top Off is designed for smaller tanks, approximately 50 gallons and under. One of the safest ATO’s available. Utilizes a single sensor to monitor water levels and a controller that protects against overdosing. Magnetic holder for sensors up to 10mm or .39".…

    $109.99 Regular Price: $
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    …can monitor how much water your tank is using. Dimensions: 10” long x 16” wide x 15” tall An Auto Top Off container is perfect for holding a fixed amount of top off water. An appropriately sized ATO reservoir would be able to supply your tanks ATO needs for a few days if not weeks,…

    $189.99 Regular Price: $

    …use for several different filtration methods (bag of carbon, bio balls, rubble rock, etc.). Section 4 is the return water section back into the tank. This is where the return pump will sit. Interchangeable Plates (PAT PENDING) Each Sapphire sump comes with two plates that can be placed into Section…

    $358.99 Regular Price: $

    tank is using. Dimensions: 6 long x 14 wide x 15 tall - Overall reservoir size 3 7/8" long x 6 3/8" wide - Opening to refill reservoir size An Auto Top Off container is perfect for holding a fixed amount of top off water. An appropriately sized ATO reservoir would be able to supply your tanks ATO

    $139.99 Regular Price: $

    Why does BRS recommend this? Having the ability to monitor the salinity of your reef tank is a very valuable piece of information. Usually, if something is to go wrong with your tank, you will usually see a change in salinity from temp, to a top off unit being stuck on, if you have a Neptune Apex…

    $84.95 Regular Price: $

    …use for several different filtration methods (bag of carbon, bio balls, rubble rock, etc.). Section 4 is the return water section back into the tank. This is where the return pump will sit. Interchangeable Plates (PAT PENDING) Each Sapphire sump comes with two plates that can be placed into Section…

    $470.99 Regular Price: $

    …adjustments required Works in complete darkness Specifications: ATO DC Pump Max Head - 8.2 ft ATO DC Pump Flow Rate - 74 gph Controller Dimensions - 2.2" H x .88" W x 1.9" L Sensor Cable Length - 10 feet Pump Cable Length - 69 inches Max Tank Mounting Thickness: 1/2" Power Supply Cable Length: 67…

    $127.99 Regular Price: $

    …runs your reactor to drain your sump for a water change. The interchangeable sizes make them really handy for endless applications around the reef tank. Polypropylene High Flow Patented ergonomic design Large thumb latch Interchangeable between sizes High quality o-ring Pressure rated up to 60 PSI…

    $16.99 Regular Price: $
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    …runs your reactor to drain your sump for a water change. The interchangeable sizes make them really handy for endless applications around the reef tank. Polypropylene High Flow Patented ergonomic design Large thumb latch Interchangeable between sizes High quality o-ring Pressure rated up to 60 PSI…

    $14.99 Regular Price: $
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    …restrictions such as ball valves, fittings like elbows, tees, and reducers, and then finally the loc-line many use as the entry point into their tanks. As an example, a pump rated at 3200gph will likely be showing less than half that amount in nearly all applications. With the FMK – Fluid…

    $99.95 Regular Price: $

    …runs your reactor to drain your sump for a water change. The interchangeable sizes make them really handy for endless applications around the reef tank. Polypropylene High Flow Patented ergonomic design Large thumb latch Interchangeable between sizes High quality o-ring Pressure rated up to 60 PSI…

    $7.49 Regular Price: $
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    …Self-adjusting foam block platform (PAT PENDING) Dual platforms Cable/Hose organizers Protein skimmer section Refugium section Quick-connect dosing & ATO tubes Four-position probe holder Sapphire blue coloring with a white bottom to block light and prevent unwanted algae growth in other sections…

    $619.99 Regular Price: $

    …use for several different filtration methods (bag of carbon, bio balls, rubble rock, etc.). Section 4 is the return water section back into the tank. This is where the return pump will sit. Interchangeable Plates (PAT PENDING) Each Sapphire sump comes with two plates that can be placed into Section…

    $428.99 Regular Price: $

    …to your reef tank. Especially when it comes to using kalk in a reactor the higher the grade will mean longer intervals required between maintenance and longer-lasting equipment. A Slow Flow ATO System - In most cases, a simple low-flow pump and a timer will be a great solution to an ATO system but…

    $346.49 Regular Price: $

    …runs your reactor to drain your sump for a water change. The interchangeable sizes make them really handy for endless applications around the reef tank. Polypropylene High Flow Patented ergonomic design Large thumb latch Interchangeable between sizes High quality o-ring Pressure rated up to 60 PSI…

    $10.99 Regular Price: $
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    …reservoir as needed. Each ATO reservoir has two 0.25” OD holes for tubes to be plumbed through, or wires for float switches. The Sapphire, Ruby, and Emerald line of ATO reservoirs have laser engraved water level markings so you can monitor how much water your tank is using. Dimensions:…

    $182.99 Regular Price: $

    …runs your reactor to drain your sump for a water change. The interchangeable sizes make them really handy for endless applications around the reef tank. Polypropylene High Flow Patented ergonomic design Large thumb latch Interchangeable between sizes High quality o-ring Pressure rated up to 60 PSI…

    $7.49 Regular Price: $
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    …restrictions such as ball valves, fittings like elbows, tees, and reducers, and then finally the loc-line many use as the entry point into their tanks. As an example, a pump rated at 3200gph will likely be showing less than half that amount in nearly all applications. With the FMK – Fluid…

    $199.95 Regular Price: $

    …3155 is one of the safest ATO’s available. It utilizes an electronic eye sensor to monitor water levels and a backup float switch sensor with an optional audible alarm. The controller protects the quiet metering pump from running dry and reports an empty storage tank. Two magnetic holders for…

    $214.99 Regular Price: $
    Out of Stock

    …use for several different filtration methods (bag of carbon, bio balls, rubble rock, etc.). Section 4 is the return water section back into the tank. This is where the return pump will sit. Interchangeable Plates (PAT PENDING) Each Sapphire sump comes with two plates that can be placed into Section…

    $578.99 Regular Price: $

    …Apex models Powered through Aquabus connection Add up to four total leak sensors Detecting a leak early can be the difference between saving a tank to an entire loss. Neptune's Leak Detection Kit is the perfect solution for anyone that uses an Apex Controller to monitor and control their aquarium.…

    $149.95 Regular Price: $

    …Reef Breeders Prism is designed to work with aquariums of all sizes, from pico desktops and All-in-One aquariums with limited space to large reef tanks with full sumps.Its small platform allows it to be installed unobtrusively almost anywhere! Three built-in infrared sensors Low Level: If water…

    $69.99 Regular Price: $