Compare Aquarium Canister Filters

Closely matched aquarium canister filters side by side, 54 pairs in all. Each pair is scored the same way, with the independent tests and specs that separate them. See the full ranking.

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FirstChoose a product…EHEIM Classic 150 (2211) – $127.19EHEIM Classic 250 (2213) – $144.99Fluval 107 – $152.99Fluval 207 – $153.94OASE BioMaster 2 250 – $229.99Penn-Plax Cascade 500 – $129.99Penn-Plax Cascade 700 – $157.27Zoo Med Nano 10 – $54.64EHEIM Classic 350 (2215) – $179.99Fluval 407 – $256.99OASE BioMaster 2 350 – $249.99Penn-Plax Cascade 1000 – $174.99Penn-Plax Cascade 1200 – $193.01SunSun HW-304B – $167.49EHEIM Professionel 4+ 600 – $329.99Fluval FX2 – $296.99Fluval FX4 – $337.99Fluval FX6 – $406.99OASE BioMaster 2 600 – $334.99OASE BioMaster 2 850 – $379.99Penn-Plax Cascade 1500 – $265vsSecondChoose a product…EHEIM Classic 150 (2211) – $127.19EHEIM Classic 250 (2213) – $144.99Fluval 107 – $152.99Fluval 207 – $153.94OASE BioMaster 2 250 – $229.99Penn-Plax Cascade 500 – $129.99Penn-Plax Cascade 700 – $157.27Zoo Med Nano 10 – $54.64EHEIM Classic 350 (2215) – $179.99Fluval 407 – $256.99OASE BioMaster 2 350 – $249.99Penn-Plax Cascade 1000 – $174.99Penn-Plax Cascade 1200 – $193.01SunSun HW-304B – $167.49EHEIM Professionel 4+ 600 – $329.99Fluval FX2 – $296.99Fluval FX4 – $337.99Fluval FX6 – $406.99OASE BioMaster 2 600 – $334.99OASE BioMaster 2 850 – $379.99Penn-Plax Cascade 1500 – $265Compare

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• Up to 75 gal 16
• 76 to 150 gal 12
• Over 150 gal 16
• Across tank sizes 10

Best Canister Filters for Aquariums up to 75 Gallons

• Fluval 207 vs OASE BioMaster 2 250
• Fluval 107 vs Fluval 207
• EHEIM Classic 250 (2213) vs Fluval 207
• Fluval 207 vs Penn-Plax Cascade 700
• Fluval 207 vs Penn-Plax Cascade 500
• EHEIM Classic 250 (2213) vs OASE BioMaster 2 250
• EHEIM Classic 150 (2211) vs Fluval 207
• OASE BioMaster 2 250 vs Penn-Plax Cascade 700
• Fluval 107 vs Penn-Plax Cascade 700
• Fluval 107 vs Penn-Plax Cascade 500
• EHEIM Classic 150 (2211) vs Fluval 107
• Fluval 107 vs Zoo Med Nano 10
• EHEIM Classic 250 (2213) vs Penn-Plax Cascade 700
• EHEIM Classic 150 (2211) vs Penn-Plax Cascade 500
• Penn-Plax Cascade 500 vs Zoo Med Nano 10
• EHEIM Classic 150 (2211) vs Zoo Med Nano 10

Best Canister Filters for 76 to 150 Gallon Aquariums

• Fluval 407 vs OASE BioMaster 2 350
• Fluval 407 vs SunSun HW-304B
• EHEIM Classic 350 (2215) vs OASE BioMaster 2 350
• EHEIM Classic 350 (2215) vs Fluval 407
• OASE BioMaster 2 350 vs Penn-Plax Cascade 1000
• Fluval 407 vs Penn-Plax Cascade 1000
• Fluval 407 vs Penn-Plax Cascade 1200
• Penn-Plax Cascade 1000 vs SunSun HW-304B
• Penn-Plax Cascade 1200 vs SunSun HW-304B
• EHEIM Classic 350 (2215) vs Penn-Plax Cascade 1000
• EHEIM Classic 350 (2215) vs Penn-Plax Cascade 1200
• Penn-Plax Cascade 1000 vs Penn-Plax Cascade 1200

Best Canister Filters for Aquariums over 150 Gallons

• EHEIM Professionel 4+ 600 vs Fluval FX6
• EHEIM Professionel 4+ 600 vs Fluval FX4
• EHEIM Professionel 4+ 600 vs OASE BioMaster 2 600
• Fluval FX6 vs OASE BioMaster 2 850
• Fluval FX4 vs OASE BioMaster 2 850
• OASE BioMaster 2 600 vs OASE BioMaster 2 850
• EHEIM Professionel 4+ 600 vs Fluval FX2
• Fluval FX2 vs Fluval FX4
• Fluval FX2 vs OASE BioMaster 2 600
• Fluval FX2 vs OASE BioMaster 2 850
• Fluval FX6 vs Penn-Plax Cascade 1500
• EHEIM Professionel 4+ 600 vs Penn-Plax Cascade 1500
• Fluval FX4 vs Penn-Plax Cascade 1500
• OASE BioMaster 2 600 vs Penn-Plax Cascade 1500
• OASE BioMaster 2 850 vs Penn-Plax Cascade 1500
• Fluval FX2 vs Penn-Plax Cascade 1500

Across tank sizes

• OASE BioMaster 2 250 vs OASE BioMaster 2 350
• EHEIM Classic 250 (2213) vs OASE BioMaster 2 350
• EHEIM Classic 350 (2215) vs OASE BioMaster 2 250
• EHEIM Professionel 4+ 600 vs SunSun HW-304B
• OASE BioMaster 2 350 vs Penn-Plax Cascade 700
• OASE BioMaster 2 600 vs SunSun HW-304B
• EHEIM Professionel 4+ 600 vs Penn-Plax Cascade 1200
• OASE BioMaster 2 600 vs Penn-Plax Cascade 1200
• EHEIM Classic 250 (2213) vs EHEIM Classic 350 (2215)
• Penn-Plax Cascade 1200 vs Penn-Plax Cascade 1500