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Aquarium Sumps

A sump requires an aquarium overflow box or drilled tank to deliver water to the sump. Water drains from the fish tank to a filter sock, trapping waste. Water then flows through aquarium sump baffles to aerate water and trap waste. Then, an aquarium return pump sends water back to the display tank.

Fish tank sumps usually have several chambers, which may include a protein skimmer chamber, a refugium, or an auto top off (ATO) reservoir. Some sumps have adjustable baffles to set protein skimmer height. A submersible heater and any specialized filtration can be housed inside the sump, hidden from the display tank. Other options include probe holders, cable management, and silencing plates.

As a general rule, buy the largest sump that will sit inside the aquarium cabinet and matches your protein skimmer height requirements.
47 Results
Trigger Systems Sump - Crystal 30 Inch

Trigger Systems Sump - Crystal 30 Inch

Trigger Systems Sump - Sapphire 26 Inch

Trigger Systems Sump - Sapphire 26 Inch

Trigger Systems Sump - Sapphire 39 Inch

Trigger Systems Sump - Sapphire 39 Inch

Trigger Systems Sump - Emerald 26 Inch

Trigger Systems Sump - Emerald 26 Inch

AquaMaxx Replacement Filter Fleece Roll for AF-1 Automatic Filter Roller

AquaMaxx Replacement Filter Fleece Roll for AF-1 Automatic Filter Roller

Klir Filter DI-7 - Drop-In Filter Fleece Roller (7 inch)

Klir Filter DI-7 - Drop-In Filter Fleece Roller (7 inch)

Eshopps RS-75 Reef Sump

Eshopps RS-75 Reef Sump

Trigger Systems Sump - Ruby 30 Inch

Trigger Systems Sump - Ruby 30 Inch

Trigger Systems Sump - Emerald 34 Inch

Trigger Systems Sump - Emerald 34 Inch

Marine Depot Elite Sump by Trigger Systems - 36 inch

Marine Depot Elite Sump by Trigger Systems - 36 inch

Trigger Systems Triton34 v2 Sump - 34 inch

Trigger Systems Triton34 v2 Sump - 34 inch

Klir Filter Bracket for DI-4 Automatic Filter (4 inch)

Klir Filter Bracket for DI-4 Automatic Filter (4 inch)

Eshopps CUBE Nano Refugium

Eshopps CUBE Nano Refugium

Trigger Systems Triton26 v2 Sump - 26 inch

Trigger Systems Triton26 v2 Sump - 26 inch

Somatic 90 Drain Cover
last chance

Somatic 90 Drain Cover

Eshopps Reef Sump - RS-100 4th Gen (75-125 Gallons)

Eshopps Reef Sump - RS-100 4th Gen (75-125 Gallons)

Eshopps Reef Sump - RS-200 4th Gen (125-225 Gallons)

Eshopps Reef Sump - RS-200 4th Gen (125-225 Gallons)

Eshopps Reef Sump - RS-300 4th Gen (225-300 Gallons)
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Eshopps Reef Sump - RS-300 4th Gen (225-300 Gallons)

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