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I just wanted to say a big THANK YOU for your speedy shipment of the order I placed on Monday. I was so shocked to see it on my doorstep on Tuesday!! I don't think we commend one another enough when we do a great job, it's usually only when something goes wrong that you hear about it! So thanks again, and I will be shopping from your store more in the future!
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Aquarium internal filters

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Aqua One Filter Air 136 Breeder Sponge Filter
Aqua One Filter Air 136 Breeder Sponge Filter
Aqua One Filter Air 136 Breeder Sponge Filter Weighted base Easy to assemble Simple to mai..
$17.95
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Aqua One Filter Air 30 Breeder Sponge Filter
Aqua One Filter Air 30 Breeder Sponge Filter
Aqua One Filter Air 30 Breeder Sponge Filter A Sponge filters work by drawing aquarium water thro..
$11.95
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Aqua One Filter Air 60 Breeder Sponge Filter
Aqua One Filter Air 60 Breeder Sponge Filter
Aqua One Filter Air 60 Breeder Sponge Filter Weighted base Easy to assemble Simple to main..
$14.95
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Aqua One Maxi 101F - Internal Filter 350 L/H
Aqua One Maxi 101F - Internal Filter 350 L/H
Aqua One Maxi 101F Internal Filter The Maxi range of Internal filters offer an effective biologic..
$22.95
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Aqua One Maxi 102F - Internal Filter 450 L/H
Aqua One Maxi 102F - Internal Filter 450 L/H
Aqua One Maxi 102F Internal Filter The Maxi range of Internal filters offer an effective biologic..
$29.95
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Aqua One Maxi 103F - Internal Filter 960 L/H
Aqua One Maxi 103F - Internal Filter 960 L/H
Aqua One Maxi 103F Internal Filter The Maxi range of Internal filters offer an effective biologic..
$39.95
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Aqua One Maxi 104F - Internal Filter 1480L/H
Aqua One Maxi 104F - Internal Filter 1480L/H
Aqua One Maxi 104F Internal Filter The Maxi range of Internal filters offer an effective biologic..
$49.95
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Eheim Pick Up Internal Filter 160 (2010)
Eheim Pick Up Internal Filter 160 (2010)
Eheim Pick Up Internal Filter 160 (2010) The EHEIM Pick Up is a small practical filter with a spe..
$74.95
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Eheim Pick Up Internal Filter 200 (2012)
Eheim Pick Up Internal Filter 200 (2012)
Eheim Pick Up Internal Filter 200 (2012) The EHEIM Pick Up is a small practical filter with a spe..
$89.95
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Eheim Pick Up Internal Filter 45 (2006)
Eheim Pick Up Internal Filter 45 (2006)
EHEIM Pick Up Internal Filter 45 (2006) The EHEIM Pick Up is a small practical filter with a spec..
$59.95
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Eheim Pick Up Internal Filter 60 (2008)
Eheim Pick Up Internal Filter 60 (2008)
Eheim Pick Up Internal Filter 60 (2008) The EHEIM Pick Up is a small practical filter with a spec..
$64.95
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Fluval U1 Underwater Filter - U Series - 250L/H Internal Aquarium Filter
Fluval U1 Underwater Filter - U Series - 250L/H Internal Aquarium Filter
Fluval U1 Underwater Internal Filter 250L/H Fluval U1 Underwater Filter provides efficient filtra..
$69.95
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Fluval U2 Underwater Filter - U Series - 400L/H Internal Aquarium Filter
Fluval U2 Underwater Filter - U Series - 400L/H Internal Aquarium Filter
Fluval U2 Underwater Internal Filter 400L/H Fluval U2 Underwater Filter provides complete and eff..
$89.95
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Fluval U3 Underwater Internal Filter 600L/H
Fluval U3 Underwater Internal Filter 600L/H
Fluval U3 Underwater Internal Filter 600L/H Fluval U3 Underwater Filter provides complete and eff..
$99.95
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Fluval U4 Underwater Filter - U Series - 1000L/H Internal Aquarium Filter
Fluval U4 Underwater Filter - U Series - 1000L/H Internal Aquarium Filter
Fluval U4 Underwater Internal Filter 1000L/H Fluval U4 Underwater Filter provides complete and ef..
$129.95
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Aquarium internal filters

We stock a large range of internal aquarium filters to keep your fish tank nice and clean. Internal filters are low cost value for money filters that sit inside the aquarium and provide excellent filtration.

Sponge filters are one of the most basic types of internal filters, they use an air pump to draw water through the sponge to filter the water. 

The most common internal filters are powered by a motor. The motor draws water through the filter media, allowing the good bacteria to break down the fish waste. Then pumping the clean water back into the aquarium.