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All Internal Filters Aquael Eheim Filters (Internal) Parts/Acc
Fluval Internal Filter OF Ocean Free Otto Pet Worx Internal Filter
Sicce Tunze Filter Internal
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Aquananos Replacement Cartridge - Single Pack Aquananos Replacement Cartridge - Single Pack
Street Price: $3.30
Our Price: $3.30
228 in stock!
Fluval U1 Internal Filter Replacement Foam Sponge Fluval U1 Internal Filter Replacement Foam Sponge
Street Price: $8.95
Our Price: $4.95
4 in stock!
Aquananos Replacement Cartridge - Two Pack Aquananos Replacement Cartridge - Two Pack
Street Price: $5.50
Our Price: $5.50
74 in stock!
Fluval U2 Internal Filter Replacement Foam Sponge 2 Pack Fluval U2 Internal Filter Replacement Foam Sponge 2 Pack
Street Price: $7.95
Our Price: $6.95
4 in stock!
Fluval U3 Internal Filter Replacement Foam Sponge 2 Pack Fluval U3 Internal Filter Replacement Foam Sponge 2 Pack
Street Price: $8.95
Our Price: $7.50
5 in stock!
Aquael ASAP Filter 300 - Replacement Cartridge Aquael ASAP Filter 300 - Replacement Cartridge
Street Price: $9.90
Our Price: $8.95
12 in stock!
(1)
Aquael ASAP Filter 500 - Replacement Cartridge Aquael ASAP Filter 500 - Replacement Cartridge
Street Price: $11.00
Our Price: $9.50
9 in stock!
Fluval U4 Internal Filter Replacement Foam Sponge 2 Pack Fluval U4 Internal Filter Replacement Foam Sponge 2 Pack
Street Price: $11.00
Our Price: $9.50
2 in stock!
Ocean Free Smart 600-800 Replacement Sponge Ocean Free Smart 600-800 Replacement Sponge
Street Price: $11.00
Our Price: $9.90
6 in stock!
OF Hydra 40 Impeller Shaft OF Hydra 40 Impeller Shaft
Street Price: $9.90
Our Price: $9.90
3 in stock!
(1)
OF Hydra 20 Impeller Shaft OF Hydra 20 Impeller Shaft
Street Price: $9.90
Our Price: $9.90
3 in stock!
OF Hydra 50 Impeller Shaft OF Hydra 50 Impeller Shaft
Street Price: $9.90
Our Price: $9.90
3 in stock!
OF Hydra 30 Impeller Shaft OF Hydra 30 Impeller Shaft
Street Price: $9.90
Our Price: $9.90
3 in stock!
Fluval U2 Poly and Carbon Cartridge - Pack of 2 Fluval U2 Poly and Carbon Cartridge - Pack of 2
Street Price: $12.96
Our Price: $9.90
3 in stock!
(1)
Aquael ASAP Filter 700 - Replacement Cartridge Aquael ASAP Filter 700 - Replacement Cartridge
Street Price: $13.95
Our Price: $10.95
16 in stock!
Fluval U BIOMAX 170g Media Fluval U BIOMAX 170g Media
Street Price: $14.96
Our Price: $10.95
4 in stock!
Fluval U3 Poly and Carbon Cartridge - Pack of 2 Fluval U3 Poly and Carbon Cartridge - Pack of 2
Street Price: $13.96
Our Price: $10.96
5 in stock!
Aquael Replacement Sponge for Turbo Filter 500 Aquael Replacement Sponge for Turbo Filter 500
Street Price: $12.95
Our Price: $11.00
(Out of Stock)
(2)
Ocean Free Smart 1000 Replacement Sponge Ocean Free Smart 1000 Replacement Sponge
Street Price: $13.95
Our Price: $11.95
(Out of Stock)
Ocean Free Smart 1500 Replacement Sponge Ocean Free Smart 1500 Replacement Sponge
Street Price: $14.80
Our Price: $11.95
4 in stock!
OF Hydra 20 Bio Foam Replacement OF Hydra20 Bio Sponge
Street Price: $16.50
Our Price: $11.95
3 in stock!
OF Hydra 30 Bio Foam Replacement OF Hydra 30 Bio Sponge
Street Price: $16.50
Our Price: $11.95
3 in stock!
Pet Worx 150lph Internal Filter Pet Worx 150lph Internal Filter
Street Price: $11.96
Our Price: $11.96
2 in stock!
Fluval U4 Poly and Carbon Cartridge - Pack of 2 Fluval U4 Poly and Carbon Cartridge - Pack of 2
Street Price: $14.96
Our Price: $12.51
2 in stock!
Eheim Pick Up 45 (2006) Internal filter Suction Cups Eheim Pick Up 45 (2006) Suction Cups
Street Price: $14.30
Our Price: $12.95
(Out of Stock)
Aquael Shaft for Turbo filter 2000 Also suits PFN 1500 / 2000 Aquael Shaft for Turbo filter 2000 Also suits PFN 1500 / 2000
Street Price: $14.95
Our Price: $12.95
3 in stock!
(2)
Fluval U1 Magnetic Impeller (does not include Shaft and Bushings) Fluval U1 Magnetic Impeller (does not include Shaft and Bushings)
Street Price: $14.95
Our Price: $12.95
4 in stock!
OF Hydra 20 Impeller OF Hydra 20 Impeller
Street Price: $14.95
Our Price: $12.95
2 in stock!
Fluval U2 Magnetic Impeller (does not include Shaft and Bushings) Fluval U2 Magnetic Impeller (does not include Shaft and Bushings)
Street Price: $15.95
Our Price: $13.95
3 in stock!
OF Hydra 40 Bio Foam Replacement OF Hydra 40 Bio Sponge
Street Price: $16.50
Our Price: $14.95
2 in stock!
(1)
OF Hydra 40 Impeller OF Hydra 40 Impeller
Street Price: $16.50
Our Price: $14.95
3 in stock!
Pet Worx 250lph Internal Filter Pet Worx 250lph Internal Filter
Street Price: $14.96
Our Price: $14.96
2 in stock!
(1)
Aquananos Space Corner Fit Medium Aquarium Filter - 55l Tanks Aquananos Space Corner Fit Medium Aquarium Filter - 55l Tanks
Street Price: $29.94
Our Price: $14.99
86 in stock!
(2)
UP Aqua Ceramic Under Water Filter - Biological and Mechanical UP Aqua Ceramic Under Water Filter - Biological and Mechanical
Street Price: $19.80
Our Price: $15.40
8 in stock!
(1)
Eheim miniFLAT Filter 300lph Eheim miniFLAT Filter 300lph
Street Price: $39.95
Our Price: $16.50
35 in stock!
Aquael Replacement Sponge for Turbo Filters 1000, 1500, 2000 Aquael Replacement Sponge for Turbo Filters 1000, 1500, 2000
Street Price: $16.95
Our Price: $16.95
5 in stock!
(1)
Eheim Pick Up 45 (2006) 2 x Foam Cartridge Replacements Eheim Pick Up 45 (2006) 2 x Foam Cartridge Replacements
Street Price: $19.80
Our Price: $16.95
1 in stock!
(1)
OF Hydra 30 Impeller OF Hydra 30 Impeller
Street Price: $19.80
Our Price: $16.95
3 in stock!
Aquael  for Impeller Rotor for Turbo filter 500 Aquael for Impeller Rotor for Turbo filter 500
Street Price: $16.95
Our Price: $16.95
3 in stock!
OF Hydra 50 Bio Foam Replacement OF Hydra 50 Bio Sponge
Street Price: $19.80
Our Price: $17.95
2 in stock!
(1)
   
 

Aquarium Internal Filters

We offer a lineup of aquarium internal filters from industry leaders including Aquael, Ocean Free, Eheim and others. Internal fish tank filters are an easy, affordable means of helping keep your fish tank clean. They're compact, quiet, fit inside the tank and are easy to set up. They're an excellent space-saving option for individuals lacking sufficient area for a larger external filter. In addition to internal filters, we also offer replacement internal filter media. Internal aquarium filter media comes in several types, including sponges, bio media, fine and coarse filter pads, mesh media, filter wool, and activated carbon.

Eheim filters, quality-made in Germany, come in a mini-size for tanks between 20-30 litres and pick up filters for tanks of 45L, 60L, 160L and 200L. The term “pick up” means you can lift the filter media from the top when changing it without removing the pump from the water.