There are three main types of airdriven filter available: corner box, cartridge and sponge types. Undergravel filters are also sometimes run with an airpump. As...

Internal powerfilters are one of the most popular filters for small to medium sized aquaria. These filters use an impellor driven water pump to pull water through a sponge filter. The sponge...

Overflow powerfilters are one of the most popular filters for small to medium sized aquaria, especially for seahorses and small tropical or coldwater fish. Overflow filters have a filter box...

Canister filters are one of the most popular filters for medium to large sized aquaria, and are suitable for both freshwater and marine aquaria. External canister filters sit underneath the...

Undergravel filters are a system that is not as popular now as in the past. With the improved design and lower price of modern canister filters, these are usually used instead of...

Trickle filters are a specialised filtration system, used mainly on quite large aquaria, or to run more than one aquarium. Trickle filters are biological filters which sit underneath the tank....