Aquarium Filters

Aquarium filters are available in a variety of different sizes, types, and shapes, but all of them perform have essentially the same purpose: to circulate water via some type of cleansing or straining medium at a rate which allows the water to be kept clean both biologically and physically. Filters may be classified as ‘outside’, ‘inside’, and sub gravel, based upon the location around the aquarium; however, location is not nearly as critical as the manner by which it operates.


200 Gallon Aquarium Canister Filter UV 9w UV Sterilizer Fish Tank HW 304 525GPH
200 Gallon Aquarium Canister Filter UV 9w UV Sterilizer Fish Tank HW 304 525GPH
$65.79
Time Remaining: 6d 21h 21m
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200 Gallon Aquarium Canister Filter UV 9w UV Sterilizer Fish Tank SUNSUN HW 304B
200 Gallon Aquarium Canister Filter UV 9w UV Sterilizer Fish Tank SUNSUN HW 304B
$73.88
Time Remaining: 26d 3h 21m
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3 Stage External Canister Filter 265 GPH Fresh Salt 100 GAL Aquarium FREE MEDIA
3 Stage External Canister Filter 265 GPH Fresh Salt 100 GAL Aquarium FREE MEDIA
$44.35
Time Remaining: 17d 8h 37m
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Aqueon Quiet Flow Aquarium Power Filters 55 75 Filter for Tanks Up to 90 Gal
Aqueon Quiet Flow Aquarium Power Filters 55 75 Filter for Tanks Up to 90 Gal
$35.99
Time Remaining: 23d 22h 42m
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3 Stage External Canister Filter 265 GPH Fresh Salt 75 GAL Aquarium FREE MEDIA
3 Stage External Canister Filter 265 GPH Fresh Salt 75 GAL Aquarium FREE MEDIA
$41.66
Time Remaining: 6d 21h 19m
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Marineland Penguin Power Aquarium Filter 10 to 20 Gallon 100 GPH Fish Tank
Marineland Penguin Power Aquarium Filter 10 to 20 Gallon 100 GPH Fish Tank
$12.73
Time Remaining: 25d 18h 42m
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New 3 Stage External Aquarium Filter 265GPH 75Gal with builtin pump kit CANIST
New 3 Stage External Aquarium Filter 265GPH 75Gal with builtin pump kit CANIST
$39.98
Time Remaining: 6d 21h 19m
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Corner Bio Sponge Filter Breeding Shrimp Nano Fish Tank Aquarium Up to 35 Gal
Corner Bio Sponge Filter Breeding Shrimp Nano Fish Tank Aquarium Up to 35 Gal
$8.67
Time Remaining: 6d 19h 48m
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Activated Charcoal Carbon in 6 Mesh Bags for Aquarium Pond Canister Filter 6 LBS
Activated Charcoal Carbon in 6 Mesh Bags for Aquarium Pond Canister Filter 6 LBS
$12.88
Time Remaining: 23d 10h 18m
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Aquarium Canister Filter 525 GPH 9W UV Sterilizer SUNSUN HW 304B 200G FREE MEDIA
Aquarium Canister Filter 525 GPH 9W UV Sterilizer SUNSUN HW 304B 200G FREE MEDIA
$74.85
Time Remaining: 14d 4h 24m
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Aquarium Protein Skimmer W 530GPH Pump Filter Powerhead Tank Salt Water 150 Gal
Aquarium Protein Skimmer W 530GPH Pump Filter Powerhead Tank Salt Water 150 Gal
$37.95
Time Remaining: 21d 2h 7m
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Aquarium Internal Filter 3 in 1 Multi Function Pump Fish Tank 80 90 160 210 GPH
Aquarium Internal Filter 3 in 1 Multi Function Pump Fish Tank 80 90 160 210 GPH
$11.68
Time Remaining: 13d 3h 29m
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Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank Aquarium Up to 20 Gal
Bio Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank Aquarium Up to 20 Gal
$4.08
Time Remaining: 4d 20h 37m
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20 lbs Activated Carbon in 4 Media Bags for aquarium fish koi pond filter
20 lbs Activated Carbon in 4 Media Bags for aquarium fish koi pond filter
$31.05
Time Remaining: 9d 6h 56m
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100 Gallon Aquarium Fish Tank Canister Filter + 9W UV Sterilizer 370 GPH
100 Gallon Aquarium Fish Tank Canister Filter + 9W UV Sterilizer 370 GPH
$53.66
Time Remaining: 22d 4h 56m
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The three main classifications are chemical, mechanical, and biological. Chemical filtration, as its name suggests, will take out toxins as well as other chemically induced material from the aquarium system by use of activated carbon. It is vital to change activated carbon on a regular basis in order to maintain a safe community.

Mechanical Filtration: will take out any unwanted material from the water via straining and/or via use of absorbent materials. This process helps greatly to maintain the water’s clarity. Biological Filtration: Different from mechanical filtration processes, biological filtration integrates bacteria and some other microorganisms which convert the fish waste into less toxic elements by way of a process called cycling.

A biological filter converts the toxic fish waste ammonia into Nitrite, and then into nitrate, which is a relatively harmless element. Cycling thus reduces the necessary maintenance in the aquarium.


HYDRO SPONGE FILTER V HS950 125GAL aquariummechanical biological filtration
HYDRO SPONGE FILTER V HS950 125GAL aquariummechanical biological filtration
$11.47
Time Remaining: 22d 23h 43m
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Filter Media Ceramic Biological Rings Aquarium Fish Tank Pond
Filter Media Ceramic Biological Rings Aquarium Fish Tank Pond
$4.67
Time Remaining: 18d 10h 28m
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18ft 22ft Biological Sponge Aquarium Filter Trickle Upper Tank Rain Drop Clear
18ft 22ft Biological Sponge Aquarium Filter Trickle Upper Tank Rain Drop Clear
$30.00
Time Remaining: 4d 4h 23m
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1 Bag of 05 LB BioGlass biological filter media for Aquarium SHIP FROM USA
1 Bag of 05 LB BioGlass biological filter media for Aquarium SHIP FROM USA
$5.49
Time Remaining: 18d 20h 5m
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Fluval Biological Enhancer for Aquarium 84 Ounce NEW
Fluval Biological Enhancer for Aquarium 84 Ounce NEW
$9.97
Time Remaining: 13d 20h 19m
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Mechanical Filtration: This process helps to eliminate any unwanted materials from the water via straining and /or use of some absorbent materials. In doing so, it also serves to maintain the clarity of the water. How Poisonous Elements in an Aquarium May Kill Fish Aquarium water can become hazardous to the fish if it gets over-saturated, which results from nitrogen cycle in its water.

In this brief article, we’ll take a look at the causes and some simple methods by which we may be able to limit the continuous deaths of aquarium fish. As all of us know, atmospheric air consists of roughly 23% oxygen and 76% nitrogen, along with many other gases in quite small quantities. Thus, it is logical that if we put on the airflow system of an aquarium, the air that is pumped in has a great deal of nitrogen but just a little oxygen. This atmospheric nitrogen can be deadly to the fish if the water gets over-saturated (over 100%) with it. Studies have also proven that nitrogen embolism, also called NITROGEN GAS BUBBLE DISEASE, will occur with 103-118% nitrogen saturation, causing a great number of fish deaths.

This condition will affect aquarium fish if one is replacing old aquarium water with slightly warm fresh water. The signs of the infection are the presence of small bubbles of nitrogen under the skin in the tail, mouth, and fins, behind the eyes, and also in the blood vessels. By spending some time aerating the water to be introduced, we can prevent this disease because we can first clear out any excess nitrogen. Any affected fish must be put in a little bucket of water into which has been passed an air stone device which will properly aerate this water. The fish is then likely to recover spontaneously if the aquarist will take the immediate and remedial action.

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