Aquarium Internal Filters
Fish tank internal filters sit inside your aquarium, rather than outside of it. For this reason, aquarium internal filters are often better suited to small to medium-sized fish tanks that are home to small and medium-sized fish. Fish tank internal filters are available in multiple styles, including undergravel filters, canisters and (the most popular choice), sponge filters.
Sponge filters are among the most common types of fish tank internal filters because they provide both mechanical and biological filtration and are low cost. They are also beneficial for breeding tanks, as the sponge does not trap fish fry. When using aquarium internal filters, you will also need an aquarium air pump and probably some check valves to keep your system secure.
Choosing the right size of fish tank filters will depend on the size of your aquarium. The Hidom Internal Fish Tank Filter with Spraybar comes in multiple sizes, starting at 200l/h and going up to 1000l/h. For an even larger capacity tank, the Hidom 1600l/h Internal Aquarium Fish Tank Filter can cope with 1600l/h and so is well suited to bigger tanks.
For very large tanks, you may want to consider external filters. Although fish tank internal filters are efficient, they work better in moderately sized tanks with fish and plants that do not produce excessive waste. If you have an aquarium with lots of guppies for example, an external filter will clear the tank more effectively. That being said, aquarium internal filters work excellently in the right conditions, are easy to fit, and inexpensive to buy.
All fish tank internal filters from Finest Filters come with sponge filter media included, and we have a wide selection that can be used for marine or freshwater tanks. Shop fish tank filters to build your aquarium filtration system and keep your fish tank thriving.
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Undergravel Aquarium Filter Kit's (Various Sizes)As low as £6.49Finest Filters Undergravel filter tray – a proven very efficient biological and mechanical filter. Placed underneath the gravel in the aquarium. These interconnecting pieces are ideal for covering all sizes of aquariums, and multiple sets can be used and interlinked for larger aquariums.
Our undergravel filters are available in 3 sizes – 24 Piece, 28 Piece and 32 Piece.
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Double Sponge Internal Bio Filter With Built In Pump£25.99Transform your aquarium (up to 210L) into a thriving aquatic haven with our Aquarium Double Sponge Filter – a complete filtration system that goes beyond the ordinary. This innovative filter combines the power of dual sponges, a built-in pump, and ceramic bio media to provide unparalleled water clarity and a healthy environment for your aquatic companions.
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Aquarium Sponge Internal Bio Filter With Built In Pump£17.99Transform your aquarium (up to 120L) into a thriving aquatic haven with our Aquarium Bio Sponge Filter – a complete filtration system that goes beyond the ordinary. This innovative filter combines the power porous sponges, a built-in pump, and ceramic bio media to provide unparalleled water clarity and a healthy environment for your aquatic companions.
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Hidom Internal Aquarium Filter 2000l/h£24.99Create a healthy and thriving aquatic environment with the 2000l/h Internal Fish Tank Aquarium Filter. Designed to deliver exceptional filtration, this all-in-one system ensures your aquarium water remains crystal clear, free from harmful microorganisms, and optimized for the well-being of your aquatic companions.With an impressive flow rate of 2000 litres per hour (l/h), this internal filter is engineered to handle aquariums of various sizes upto around 400 litres. It effectively removes debris, uneaten food, and other organic matter, maintaining superior water quality and reducing the risk of harmful bacteria and algae growth.Learn More -
Hidom 200l/h Internal Aquarium Fish Tank Filter with Spraybar (AP-300L)£8.99You are purchasing a high quality 200l/h internal power filter suitable for use in aquariums up to 40 litres in size.
Our internal filters come complete with a spray bar attachment, along with a venturi, to facilitate additional aeration within the aquarium.
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Hidom 300l/h Internal Aquarium Fish Tank Filter with Spraybar (AP-600L)£9.45You are purchasing a high quality 300l/h internal power filter suitable for use in aquariums up to 60 litres in size.
Our internal filters come complete with a spray bar attachment, along with a venturi, to facilitate additional aeration within the aquarium.
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Hidom 350l/h Internal Aquarium Fish Tank Filter with Spraybar (AP-650L)£9.99You are purchasing a high quality 350l/h internal power filter suitable for use in aquariums up to 70 litres in size.
Our internal filters come complete with a spray bar attachment, along with a venturi, to facilitate additional aeration within the aquarium.
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Hidom 600l/h Internal Fish Tank Aquarium Filter with Spraybar (AP-1000L)£11.99You are purchasing a high quality 600l/h internal power filter suitable for use in aquariums up to 80 litres in size.
Our internal filters come complete with a spray bar attachment, along with a venturi, to facilitate additional aeration within the aquarium.
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Hidom 1000l/h Internal Aquarium Fish Tank Filter with Spraybar (AP-1500L)£14.99You are purchasing a high quality 1000l/h internal power filter suitable for use in aquariums up to 150 litres in size.
Our internal filters come complete with a spray bar attachment, along with a venturi, to facilitate additional aeration within the aquarium.
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Hidom 800l/h Internal Aquarium Fish Tank Filter (AP-1200L)£12.49You are purchasing a high quality Hidom 800l/h internal power filter suitable for use in aquariums up to 150 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1000l/h Internal Aquarium Fish Tank Filter (AP-1350L)£13.99You are purchasing a high quality Hidom 1000l/h internal power filter suitable for use in aquariums up to 200 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1200l/h Internal Aquarium Fish Tank Filter (AP-1600L)£16.99You are purchasing a high quality Hidom 1200l/h internal power filter suitable for use in aquariums up to 300 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1600l/h Internal Aquarium Fish Tank Filter (AP-2000L)£18.99You are purchasing a high quality Hidom 1600l/h internal power filter suitable for use in aquariums up to 350 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 2200l/h Internal Aquarium Fish Tank Filter (AP-3000L)£22.99Out of stockYou are purchasing a high quality Hidom 2200l/h internal power filter suitable for use in aquariums up to 500 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 800l/h Internal Aquarium Fish Tank Filter (AP-1200F)£12.99You are purchasing a high quality Hidom 800l/h internal power filter suitable for use in aquariums up to 150 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1000l/h Internal Aquarium Fish Tank Filter (AP-1350F)£15.99You are purchasing a high quality Hidom 1000l/h internal power filter suitable for use in aquariums up to 200 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1200l/h Internal Aquarium Fish Tank Filter (AP-1600F)£17.99You are purchasing a high quality Hidom 1200l/h internal power filter suitable for use in aquariums up to 300 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1600l/h Internal Aquarium Fish Tank Filter (AP-2000F)£22.99You are purchasing a high quality Hidom 1600l/h internal power filter suitable for use in aquariums up to 350 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1200l/h Internal Aquarium Fish Tank Filter (AP-1600H)£15.99You are purchasing a high quality Hidom 1200l/h internal power filter suitable for use in aquariums up to 300 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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Hidom 1600l/h Internal Aquarium Fish Tank Filter (AP-2000H)£17.99Out of stockYou are purchasing a high quality Hidom 1600l/h internal power filter suitable for use in aquariums up to 350 litres in size.
All filters come supplied complete with foam sponge for mechanical and biological filtration. All filters come complete with mains cable with a 3 Pin UK plug attached. These are quality CE certified Internal Filters.
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