In my opinion the best aquarium filter brand is Fluval

Aquarium filters help maintain clean and safe water for our fish and/or invertebrates and plants.
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The biological filter media (Ceramide rings, Biomax, Bio-ball…) and pre-filter media can be reuse for a long period; however, the mechanical (foam, floss…) and chemical (activated carbon) ones need sometimes changing. If your aquarium filter uses cartridges specially designed by the manufacturer, check its brand and buy the new ones for changing. You also need to check the manufacturer’s guide to know how and when you should change the filter cartridges.
Some aquarium canister filter brands come with one or two types of filter media.
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Developed by true aquatic hobbyists, All-Glass Aquarium is the first single brand to provide a broad array of aquarium solutions. From their inception, All-Glass Aquarium products have one goal in mind, “What is best for the health and well-being of fish and aquatic life.” What this means to you is that no detail has been overlooked. Foods are made with premium natural ingredients, power filters provide four-stage filtration to ensure crystal clear water, and heaters are accurate within +/-1°F. These are just a few of the examples of what makes All-Glass Aquarium different. However, that is a personal preference and there are many great aquarium filter brands.
Photo provided by FlickrThere are many different brands of canister filters and most of them can be used for both fresh or saltwater aquarium.
Photo provided by Flickrhey have been precisely calibrated to provide the best long-term filtration resulting in optimum water conditions for your aquarium.
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In addition, there are self-made aquarium filters that work well, sometimes even better than the store-bought brands, if you know what you are doing. Developed by true aquatic hobbyists, Aqueon is the first single brand to provide a broad array of aquarium solutions. From their inception, Aqueon products have one goal in mind, “What is best for the health and well-being of fish and aquatic life.” What this means to you is that no detail has been overlooked. Foods are made with premium natural ingredients, power filters provide four-stage filtration to ensure crystal clear water, and heaters are accurate within +/-1°F. These are just a few of the examples of what makes Aqueon different.By understanding the benefits and features of the have to offer, a consumer will be able to determine the best aquarium filter for their needs. As with many of the models listed below in our chart, there are smaller and larger versions of each that would qualify for your filtration needs. Once you found the brand and type of filter you like, be sure to dig further within the page to find the other sizes provided. As early as 2004 EHEIM, mp and JÄGER, the three big European brands in aquatics, were amalgamated into EHEIM Aquatics Group. Each one a leader in its field and a byword for quality, made in Germany. Since 2012 all products and services are managed under only under the brand EHEIM. EHEIM, founded in 1949 by the engineer Gunther Eheim, began by manufacturing technical toys. In the 1960s EHEIM invented the world’s first aquarium suction filter and gave the ornamental fish aquarium worldwide a breakthrough. Coralife is a trusted brand of marine aquarium parts and supplies. We offer aquarium lighting, filtration products, marine salt mix and more. The original Oceanic BioCube, one of the first and most innovative all inclusive aquariums, is now part of the Coralife family of products. The newly refined Coralife BioCube boasts key features and improvements to overall function, performance and design while remaining compatible with all existing BioCube accessories.We hope the information provided will help you make an easy decision on the type of filter you need, as well as the brand you want based on your aquarium size. Aquariums come in all shapes and sizes so be sure to check out the other models of the brands you like to fit your aquarium size perfectly.