Fish Tank Filters

What is the best aquarium filter? Fish tank filter systems come in various styles to meet different needs. We’ll help you choose the best fish filter for you.

A small fish tank filter can be a power filter, a hob filter (hang on back) with filter cartridges that clean and circulate water. An aquarium canister filter sits under the aquarium and uses tubes to move water from the tank to the filter. The best canister filter will move plenty of water and house enough media to support the tank.

The best saltwater aquarium filter is a sump filter, an extra tank under the main tank that increases water volume, hides the water heater, and houses powerful filtration, like a protein skimmer. Many sumps include a refugium, a small ‘refuge’ for growing macroalgae, copepods, and beneficial bacteria.

Many aquarists supplement their main water filter with a media reactor to remove waste, breed bacteria or control algae.
113 Results
Eheim Suction Cup w/ Clip 16/22mm 0.65in/0.90in

Eheim Suction Cup w/ Clip 16/22mm 0.65in/0.90in

Coralife Marine Filter with Protein Skimmer

Coralife Marine Filter with Protein Skimmer

Eheim Skim350 Micro Surface Skimmer

Eheim Skim350 Micro Surface Skimmer

Eheim Hose 12/16mm 0.50in/0.65in (10ft)

Eheim Hose 12/16mm 0.50in/0.65in (10ft)

AquaMaxx HOB-R Hang-On-Back Refugium

AquaMaxx HOB-R Hang-On-Back Refugium

Trigger Systems Sapphire Sump - 34 inch

Trigger Systems Sapphire Sump - 34 inch

Trigger Systems Crystal Sump - 30 inch

Trigger Systems Crystal Sump - 30 inch

Trigger Systems Sapphire Sump - 39 inch

Trigger Systems Sapphire Sump - 39 inch

Trigger Systems Sapphire Sump - 26 inch

Trigger Systems Sapphire Sump - 26 inch

Eheim Suction Cup w/ Clip 25/34mm 1.00 inch/1.35in

Eheim Suction Cup w/ Clip 25/34mm 1.00 inch/1.35in

Marine Depot Elite Sump by Trigger Systems - 30 inch

Marine Depot Elite Sump by Trigger Systems - 30 inch

Trigger Systems Emerald Sump - 26 inch

Trigger Systems Emerald Sump - 26 inch

Marine Depot Elite Sump by Trigger Systems - 36 inch

Marine Depot Elite Sump by Trigger Systems - 36 inch

Eheim Hose 16/22mm 0.65in/0.90in (10ft)

Eheim Hose 16/22mm 0.65in/0.90in (10ft)

Eheim Double Tap Quick Release 12/16mm 0.50 inch/0.65in

Eheim Double Tap Quick Release 12/16mm 0.50 inch/0.65in

Eheim Suction Cup w/ Clip 12/16mm 0.50in/0.65in

Eheim Suction Cup w/ Clip 12/16mm 0.50in/0.65in

Trigger Systems Triton44 v2 Sump - 44 inch

Trigger Systems Triton44 v2 Sump - 44 inch

IceCap 15 Reef Sump

IceCap 15 Reef Sump

Trigger Systems Ruby Sump - 36 inch

Trigger Systems Ruby Sump - 36 inch

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