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Ista Replacement Hang On Cartridges Pack of 3 Ista Replacement Hang On Cartridges Pack of 3
Street Price: $12.95
Our Price: $2.20
61 in stock!
Ista Hose Adapter 12-16mm Ista Hose Adapter 12-16mm
Street Price: $8.80
Our Price: $3.00
19 in stock!
(3)
Aquananos Goldfish Filter Media Aquananos Goldfish Stone Filter Media
Street Price: $5.50
Our Price: $3.00
32 in stock!
Aquananos Betta Stone Filter Media Aquananos Betta Stone Filter Media
Street Price: $5.50
Our Price: $3.00
57 in stock!
Starpet Small Charcoal Bamboo Rings Carbon Media 800ml - Filtration Starpet Small Charcoal Bamboo Rings Carbon Media 800ml - Filtration
Street Price: $9.90
Our Price: $3.00
58 in stock!
(1)
Aquananos Replacement Cartridge - Single Pack Aquananos Replacement Cartridge - Single Pack
Street Price: $3.30
Our Price: $3.30
133 in stock!
Aquarium Filter Poly Pads 15g Poly Pads 15g Filter Wool Media
Street Price: $5.50
Our Price: $3.47
10 in stock!
Filtration Bag for Resins and Carbon Resin Media Filtration Bag for Resin Media
Street Price: $5.01
Our Price: $4.00
60 in stock!
(35)
Your Instructional Tropical Aquarium Guide by Paul Talbot Your Instructional Tropical Aquarium Guide by Paul Talbot
Street Price: $32.96
Our Price: $4.40
3 in stock!
Bakki Rods (Bacteria House Bio Rods) Full Version Bakki Rods (Bacteria House Bio Rods) Full Version
Street Price: $6.50
Our Price: $4.95
56 in stock!
(2)
AquaClear 20 Replacement Foam Sponge Block AquaClear 20 Replacement Foam Sponge Block
Street Price: $6.95
Our Price: $4.95
3 in stock!
(2)
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!
Serenity Small Sponge Filter SMXY-180 - Ideal for tanks up to 100l Serenity Small Sponge Filter SMXY-180 - Ideal for tanks up to 100l
Street Price: $7.70
Our Price: $4.95
55 in stock!
(4)
Serenity Nano Sponge Filter SMXY-2835 - Ideal for tanks up to 40l Serenity Nano Sponge Filter SMXY-2835 - Ideal for tanks up to 40l
Street Price: $5.95
Our Price: $4.95
(Out of Stock)
(3)
Serenity Oxygen Block 20g Serenity Oxygen Block 20g
Street Price: $4.95
Our Price: $4.95
13 in stock!
Single Sponge Intake Filter XY-2830 Single Sponge Intake Filter XY-2830
Street Price: $8.95
Our Price: $5.50
(Out of Stock)
Pet Worx 800 /1200lph Canister Replacement Sponge Pet Worx 800 /1200lph Canister Replacement Sponge
Street Price: $6.50
Our Price: $5.50
6 in stock!
Pet Worx 1800 /2200lph Canister Replacement Sponge Pet Worx 1800 /2200lph Canister Replacement Sponge
Street Price: $6.50
Our Price: $5.50
(Out of Stock)
AquaClear 30 Replacement Foam Sponge Block AquaClear 30 Replacement Foam Sponge Block
Street Price: $6.95
Our Price: $5.50
14 in stock!
AquaClear 20 Replacement Ammo Rid 100g Ammonia AquaClear 20 Replacement Ammo Rid 100g Ammonia
Street Price: $6.95
Our Price: $5.50
10 in stock!
Single Large Sponge Intake Filter XY-001 Single Large Sponge Intake Filter XY-001
Street Price: $8.95
Our Price: $5.50
(Out of Stock)
Bakki Rods Square Single Unit (Bacteria House Bio Rods) Bakki Rods Square Single Unit (Bacteria House Bio Rods)
Street Price: $6.60
Our Price: $5.50
45 in stock!
Bakki Rods Spiral Single Unit (Bacteria House Bio Rods) Bakki Rods Spiral Single Unit (Bacteria House Bio Rods)
Street Price: $6.60
Our Price: $5.50
46 in stock!
Bakki Rods (Bacteria House Bio Rods) Bakki Rods Brown (Bacteria House Bio Rods) Full Version
Street Price: $6.60
Our Price: $5.50
7 in stock!
Ista 19mm Hose 3/4" Non Return Check Valve Ista 19mm Hose 3/4" Non Return Check Valve
Street Price: $17.94
Our Price: $5.50
78 in stock!
(1)
Aquarium Filter Poly Pads 20g Poly Pads 20g Filter Wool Media
Street Price: $7.70
Our Price: $5.95
10 in stock!
(3)
AquaClear 30 Replacement Ammo Rid 100g Ammonia AquaClear 30 Replacement Ammo Rid 100g Ammonia
Street Price: $6.95
Our Price: $5.95
4 in stock!
AquaClear 20 Replacement Activated Carbon Insert AquaClear 20 Replacement Activated Carbon Insert
Street Price: $6.95
Our Price: $5.95
4 in stock!
(2)
Fluval C2 Hang On Power Foam Pad Pack of 2 Fluval C2 Hang On Power Foam Pad Pack of 2
Street Price: $6.95
Our Price: $5.95
3 in stock!
(2)
Fluval C3 Hang On Power Foam Pad Pack of 2 Fluval C3 Hang On Power Foam Pad Pack of 2
Street Price: $6.95
Our Price: $5.95
4 in stock!
Serenity Large Sponge Filter SMXY-380 Serenity Large Sponge Filter SMXY-380
Street Price: $6.95
Our Price: $5.95
73 in stock!
(5)
Serenity Medium Sponge Filter SMXY-280 - Ideal for tanks up to 150l Serenity Medium Sponge Filter SMXY-280 - Ideal for tanks up to 150l
Street Price: $8.80
Our Price: $5.95
43 in stock!
(2)
Komoda Filter Mesh Media Bag Medium 20x40cm Komoda Filter Mesh Media Bag Medium 20x40cm
Street Price: $5.95
Our Price: $5.95
(Out of Stock)
AquaClear 50 Replacement Ammo Rid 170g Ammonia AquaClear 50 Replacement Ammo Rid 170g Ammonia
Street Price: $7.70
Our Price: $6.49
2 in stock!
(1)
AquaClear 30 Replacement Activated Carbon Insert AquaClear 30 Replacement Activated Carbon Insert
Street Price: $6.95
Our Price: $6.49
19 in stock!
AquaClear 50 Replacement Foam Sponge Block AquaClear 50 Replacement Foam Sponge Block
Street Price: $7.95
Our Price: $6.50
16 in stock!
(1)
Ista Polyfiber Ammonia Filter Pad 25x45cm Media - Cut to size Ista Polyfiber Ammonia Filter Pad 25x45cm Media - Cut to size
Street Price: $9.90
Our Price: $6.60
106 in stock!
Ista Polyfiber Phosphate Filter Pad 25x45cm Media - Cut to size Ista Polyfiber Phosphate Filter Pad 25x45cm Media - Cut to size
Street Price: $9.90
Our Price: $6.60
70 in stock!
   
 

Fish Tank Filters

An aquarium filter or fish tank filter is required for keeping your aquarium clean with mechanical filtration and sponges which remove unsightly solid waste. By letting you go longer between replacing your fish tank’s water, the standard water filter in most aquariums prevents your fish from experiencing any sort of stress or shock from a being in a different aquatic environment.

The Tech Den has everything you need to make sure that filtering your tank is easy as possible. Choose from our range of quality brand name tank filters or keep your current one running in top shape with our replacement aquarium filters, media, sponges, and spare parts. If you already have an aquarium filter, our filter media upgrades help to maintain and improve your filter.

Aquarium filter media are an easy to use and replace and are a valuable addition to your aquarium. Replaced periodically, biological filter media help with housing your tank’s good bacteria and reduce the toxicity of your water. As you can see, The Tech Den has the expertise and product selection to make sure that you are using the filter solution that works best for you and your fish. After all, picking the right filter is not only good for your fish, it generally means less cleaning and maintenance for you. Feel free to contact us with any questions about what filtering solution would work best for you!