There are different kinds of filters that can be used for aquariums
. There's no such thing as an absolute right or wrong kind of filter - it all depends on the kind of aquarium you have. In fact, there is a specific type of filter that works best for big or dense aquariums, and that is the canister filter.
The canister filter is a powerful device that can catch a lot of dirt, which is why it has a large container (or canister, as it says in its name) to keep all that in. A good canister filter is Filstar. It has a filter media that can remove a bulk of the sediments and other dirt from the water at first pass. But because the media can catch a lot of dirt, it gets filthy fast. It has to be replaced with the Aquarium Pharmaceuticals Filstar Progressive Micro-Filtration Pad from Pet Store
. At just around $5 a piece, there's no reason for you to not replace your filter media on a regular basis.
The Aquarium Pharmaceuticals Filstar Progressive Micro-Filtration Pad has holes whose sizes are graduated on the pad. This increases the efficacy of its cleaning capacities. It can be used to filter out particles of varying sizes, from the big ones to the ultra-fine.
New and improved canister filter media designed to fit the FilStar XP. Graduated hole sizes allows for increased cleaning efficacy. For ultra-fine filtration and polishing.