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 5 LBS Activated Carbon Aquarium Pond Canister Filter Phosphate Free Mesh Bags $19.95 Time Remaining: 16d 19h 36m Buy It Now for only: $19.95 |
 Activated carbon Charcoal Bituminous Lignite about 5 6 lbs new $3.58 (4 Bids) Time Remaining: 1d 9h 38m |
 15 LBS Activated Carbon Aquarium Pond Canister Filter Phosphate Free Mesh Bags $38.25 Time Remaining: 21d 9h 4m Buy It Now for only: $38.25 |
 49 LBS Activated Carbon Aquarium Pond Canister Filter Phosphate Free Mesh Bags $16.14 Time Remaining: 21d 8h 57m Buy It Now for only: $16.14 |
 HIGH ACTIVATED CARBON FOR HOUSE ALCOHOL AQUARIUM FILTERS PICK A SIZE $29.95 Time Remaining: 7h 48m Buy It Now for only: $29.95 |
 29 Pounds 1300 Grams of Aquarium Activated Carbon Sealed In 3 Media Bags $11.89 Time Remaining: 7d 9h 16m Buy It Now for only: $11.89 |
 Aquarium Filter 500g Activated Carbon 30pcs Bio Ball 500g Ceramic Ring Combo $14.99 Time Remaining: 17d 7h 46m Buy It Now for only: $14.99 |
 20 LBS Activated Carbon Aquarium Pond Canister Filter Phosphate Free Bags $49.00 Time Remaining: 16d 19h 36m Buy It Now for only: $49.00 |
 20 LBS Premium Activated Carbon For Pond Reef Aquarium with Free Nylon Media Bag $44.49 Time Remaining: 26d 22h 42m Buy It Now for only: $44.49 |
 Activated Charcoal Carbon HYDROPONICS AQUARIUMS AIR WATER FILTRATION BULK $44.95 Time Remaining: 8d 8h 25m Buy It Now for only: $44.95 |
 PENN PLAX 28 OZ PRO CARB ACTIVATED CARBON for the aquarium removes toxins $6.00 Time Remaining: 6h 7m Buy It Now for only: $8.00 |
 20 LBS Premium Activated Carbon For Pond Reef Aquarium $43.99 Time Remaining: 19d 8h 18m Buy It Now for only: $43.99 |
 12 LBS Premier Activated Carbon For Aquarium Pond Reef $35.99 Time Remaining: 22d 13h 44m Buy It Now for only: $35.99 |
 Activated Carbon Aquarium Pond PHOSPHATE FREE 5 pounds 4mm Pellets $22.95 Time Remaining: 21h 30m Buy It Now for only: $22.95 |
 Activated Carbon Filter Pads for Eheim Classic 2213 250 2628130 $19.95 Time Remaining: 10d 12h 42m Buy It Now for only: $19.95 |
 AquaClear 50 Activated Carbon 2 2 5 Ounce $5.79 Time Remaining: 21d 22h 28m Buy It Now for only: $5.79 |
 Marineland Black Diamond Activated Carbon Bags 160 530 $5.78 Time Remaining: 15d 9h 16m Buy It Now for only: $5.78 |
 20 LBS Premier Activated Carbon For Aquarium Pond Reef $49.99 Time Remaining: 2d 4h 35m Buy It Now for only: $49.99 |
 50 LBS Activated Carbon Media Aquarium Canister Pond Filter Phosphate Free Bags $89.95 Time Remaining: 16d 19h 36m Buy It Now for only: $89.95 |
 STAR REEF AQUARIUM ACTIVATED CARBON CHARCOAL FILTER MEDIA $10.00 Time Remaining: 4h 17m |
 Aqua Clear 110 500 Activated Carbon 9oz x 6pk $31.79 Time Remaining: 20d 7h 56m Buy It Now for only: $31.79 |
 12 LBS Premium Activated Carbon For Pond Reef Aquarium with Free Nylon Media Bag $32.99 Time Remaining: 26d 22h 44m Buy It Now for only: $32.99 |
 Aqua Clear 70 300 Activated Carbon 42 oz x 6pk $23.65 Time Remaining: 20d 7h 36m Buy It Now for only: $23.65 |
 Acurel Activated Filter Carbon 3 lbs Economy for aquarium fish tank filter $12.96 Time Remaining: 5d 1h 31m Buy It Now for only: $12.96 |
 Aquarium Filter 500g Ceramic Rings 500g Activated Carbon Combo with Media Bag $11.99 Time Remaining: 17d 6h 40m Buy It Now for only: $11.99 |
 HOT SALE US Aquarium Super Activated Carbon Filter Sponge for FishTank $0.99 Time Remaining: 29d 13h 44m Buy It Now for only: $0.99 |
 Activated Carbon Aquarium Pond PHOSPHATE FREE 10 pounds $34.95 Time Remaining: 10d 5h 33m Buy It Now for only: $34.95 |
 Bulk Aquarium Activated Carbon Pellets 15 pounds $42.99 Time Remaining: 15d 9h 25m Buy It Now for only: $42.99 |
 STAR 4X REEF AQUARIUM ACTIVATED CARBON CHARCOAL FILTER MEDIA $26.00 Time Remaining: 11h 47m |
 25 lbs Activated Carbon Aquarium Pond Water Filter NEW and unused $13.99 Time Remaining: 7h 45m Buy It Now for only: $13.99 |
 Bulk Aquarium Activated Carbon Pellets 10 pounds $32.99 Time Remaining: 15d 9h 25m Buy It Now for only: $32.99 |
 Marineland Black Diamond Premium Activated Carbon 40oz $14.65 Time Remaining: 20d 1h 3m Buy It Now for only: $14.65 |
 300g Premium Activated Carbon Filter Media Aquarium External Filters $7.88 Time Remaining: 4d 15h 47m Buy It Now for only: $7.88 |
 12 LBS Premium Activated Carbon For Pond Reef Aquarium $31.99 Time Remaining: 19d 8h 19m Buy It Now for only: $31.99 |
 Marineland PA0391 Diamond Blend Activated Carbon Ammonia Neutralizing Crystals $10.93 Time Remaining: 28d 10h 30m Buy It Now for only: $10.93 |
 1000g Aquarium Activated Carbon w Filter Media Bag $12.99 Time Remaining: 18d 12h 6m Buy It Now for only: $12.99 |
 Activated Carbon Charcoal 4 ounce Air Water Odor $3.50 Time Remaining: 27d 23h 44m Buy It Now for only: $3.50 |
 2 AquaClear 150 StepTwo Ultragrade Activated Carbon Filter Insert A 602 15 oz $3.99 Time Remaining: 6h 31m Buy It Now for only: $4.99 |
 Aquarium Filter 500g Activated Carbon 30pcs Bio Ball Combo with Media Bag $11.99 Time Remaining: 17d 7h 13m Buy It Now for only: $11.99 |
 Petcetera 3 LBS PREMIUM AQUARIUM ACTIVATED FILTER CARBON FAST FREE SHIPPING $17.99 Time Remaining: 23d 22h 9m Buy It Now for only: $17.99 |
 AquaClear 70 Activated Carbon 4 1 5 Ounce $7.28 Time Remaining: 21d 22h 30m Buy It Now for only: $7.28 |
 Acurel Activated Filter Carbon 8oz Economy for aquariums fish tank filters $5.96 Time Remaining: 5d 1h 31m Buy It Now for only: $5.96 |
 Activated Charcoal Carbon POND REEF AQUARIUM AIR WATER FILTER NO CHEMICALS $18.95 Time Remaining: 8d 8h 27m Buy It Now for only: $18.95 |
 400g Nirox Premium Activated Carbon Reef OK+ Free Bag $14.99 Time Remaining: 28d 14h 15m Buy It Now for only: $14.99 |
 Deep Blue Lab Grade Activated Carbon w Bag 24 Oz $9.97 Time Remaining: 19d 7h 7m Buy It Now for only: $9.97 |
 AquaClear 20 Activated Carbon Media Insert 3 Pk A 1380 $12.67 Time Remaining: 14d 2h 44m Buy It Now for only: $12.67 |
 Activated Carbon 10 Micron 6 Ounces $4.99 Time Remaining: 1d 6h 19m |
 Marineland Black Diamond Premium Activated Carbon 40oz $18.99 Time Remaining: 26d 20m Buy It Now for only: $18.99 |
 Acurel LLC Extreme Activated Carbon Pellets and Ammonia Away Green Blend Aquari $32.71 Time Remaining: 22d 1h 27m Buy It Now for only: $32.71 |
 Aqua Clear 110 500 Activated Carbon 9oz $4.81 Time Remaining: 14d 8h 59m Buy It Now for only: $4.81 |
 45 oz Acurel Extreme Activated Filter Carbon Pellets aquarium filter media $23.96 Time Remaining: 20d 12h 29m Buy It Now for only: $23.96 |
 40 oz Acurel Premium Activated Filter Carbon Granules aquarium filter media $19.96 Time Remaining: 20d 12h 29m Buy It Now for only: $19.96 |
 Marineland Black Diamond Premium Activated Carbon 5oz $4.99 Time Remaining: 13d 10h 21m Buy It Now for only: $4.99 |
 Diamond Blend Activated Carbon Ammonia Crystals 187L $9.85 Time Remaining: 29d 3h 55m Buy It Now for only: $9.85 |
 Petcetera 10LBS PREMIUM AQUARIUM ACTIVATED FILTER CARBON+BONUS FREE SHIPPING $35.99 Time Remaining: 22d 22h 9m Buy It Now for only: $35.99 |
 Lab Grade Activated Carbon Top Quality $2.75 Time Remaining: 6d 6h 31m Buy It Now for only: $3.15 |
 Reef Aquarium Carbon Bituminous Activated High Quality 4 Pounds Saltwater Filter $15.95 Time Remaining: 6d 21h 58m Buy It Now for only: $15.95 |
 DUAL ACTIVE CARBON SPONGE filter pad Foam media bio $6.45 Time Remaining: 11d 3h 17m Buy It Now for only: $6.45 |
 Activated Carbon Aquarium Pond PHOSPHATE FREE 3 pounds $9.95 Time Remaining: 10d 7h 6m Buy It Now for only: $9.95 |
 Marineland PA0392 Diamond Blend Activated Carbon Ammonia Neutralizing Crystals $18.09 Time Remaining: 21d 9h 54m Buy It Now for only: $18.09 |
 Carbon Lignite Premium Activated Saltwater Reef Aquarium Carbon Filter 4 lbs $16.49 Time Remaining: 17d 1h 50m Buy It Now for only: $16.49 |
 Aquarium FishTank Super Activated Carbon Filter Sponge $3.69 Time Remaining: 15d 17h 23m Buy It Now for only: $3.69 |
 Activated Carbon Filter Pads for Eheim Classic 2217 600 2628170 $15.88 Time Remaining: 10d 12h 50m Buy It Now for only: $15.88 |
 Activated Carbon Filter Pads for Eheim Classic 2215 350 2628150 $34.95 Time Remaining: 10d 12h 46m Buy It Now for only: $34.95 |
 STAR AQUARIUM POND FISH TANK FILTER MEDIA ACTIVATED CARBON $10.00 Time Remaining: 8h 39m |
 12 LBS Activated Carbon Aquarium Pond Canister Filter Phosphate Free Pounds $35.00 Time Remaining: 16d 19h 36m Buy It Now for only: $35.00 |
 Bio Ball+Ceramic Ring+Activated Carbon filter Media Pack for External Filter $17.99 Time Remaining: 4d 15h 47m Buy It Now for only: $17.99 |
 Activated Carbon Charcoal 8 ounce Air Water Odor $4.00 Time Remaining: 27d 23h 44m Buy It Now for only: $4.00 |
 AQUAWORKS Aquarium filter media Pad Activated Carbon $8.99 Time Remaining: 17d 22h 46m Buy It Now for only: $8.99 |
 Activated Carbon Biochar POND REEF HYDROPONIC AQUARIUMS AIR WATER NO CHEMICALS $18.95 Time Remaining: 11d 3h 43m Buy It Now for only: $18.95 |
 1 Gal Kaldnes 1 Media K1 K3 Works better than Activated Carbon Bio Chips $44.99 Time Remaining: 26d 5h 6m Buy It Now for only: $44.99 |
 1500g Aquarium Activated Carbon w Filter Media Bag $17.99 Time Remaining: 15d 7h 55m Buy It Now for only: $17.99 |
 11 oz Acurel Extreme Activated Filter Carbon Pellets aquarium filter media $10.96 Time Remaining: 20d 12h 29m Buy It Now for only: $10.96 |
 SAVE 4X REEF AQUARIUM ACTIVATED CARBON CHARCOAL FILTER MEDIA $26.00 Time Remaining: 6d 7h 36m |
 Bulk Aquarium Highly Activated Carbon Gold 10 pounds $39.99 Time Remaining: 10d 2h 56m Buy It Now for only: $39.99 |
 Acurel Activated Filter Carbon 1 LB Economy for aquarium fish tank filter $9.96 Time Remaining: 5d 1h 31m Buy It Now for only: $9.96 |
 Bulk Aquarium Activated Carbon 15 pounds $49.99 Time Remaining: 28d 6h 4m Buy It Now for only: $49.99 |
 AquaClear 20 Activated Carbon 15 Ounce $3.68 Time Remaining: 21d 22h 33m Buy It Now for only: $3.68 |
 AQUA TECH ACTIVATED CARBON for ALL Aquarium Filters NEW $11.99 Time Remaining: 8d 12h 24m Buy It Now for only: $11.99 |
 23 oz Acurel Extreme Activated Filter Carbon Pellets aquarium filter media $15.96 Time Remaining: 20d 12h 29m Buy It Now for only: $15.96 |
 Diamond Blend Activated Carbon Ammonia Crystals 900mL $7.95 Time Remaining: 29d 3h 59m Buy It Now for only: $7.95 |
 ESV Granular Activated Carbon 1lb $13.49 Time Remaining: 5d 2h 54m Buy It Now for only: $13.49 |
 STAR AQUARIUM POND FISH TANK ACTIVATED CARBON 1 YEAR SUPPLY $40.00 Time Remaining: 10h 35m |
 10 oz Acurel Premium Activated Filter Carbon Granules aquarium filter media $9.96 Time Remaining: 20d 12h 29m Buy It Now for only: $9.96 |
 Pond Reef Aquarium Filter 500g Activated Carbon Charcoal Water Odor Filtration $9.69 Time Remaining: 4d 14h 1m Buy It Now for only: $9.69 |
 4 Activated Carbon Cut to Fit Aquarium Filter Pad Bulk 10 x 18 Pads $17.81 Time Remaining: 25d 2h 45m Buy It Now for only: $17.81 |
 Acurel LLC Extreme Activated Carbon Pellets and Ammonia Away Green Blend Aquari $13.69 Time Remaining: 9d 46m Buy It Now for only: $13.69 |
 Pelletized Activated Carbon For Fish Bulk 1 Pound Aquarium $5.99 Time Remaining: 19d 15h 39m Buy It Now for only: $5.99 |
 SUNSUN High Absorptive Active Carbon 500g $9.50 Time Remaining: 27d 7h 46m Buy It Now for only: $9.50 |
 Activated Charcoal Carbon HYDROPONICS AQUARIUMS AIR WATER FILTRATION FREE $27.95 Time Remaining: 8d 8h 20m Buy It Now for only: $27.95 |
 30 pound box of ACTIVATED CARBON Granular Aquarium Fish filter pond coal $42.99 Time Remaining: 25d 8h 10m Buy It Now for only: $42.99 |
 Super Activated Carbon Filter biochemical Sponge for Aquarium Tank Pond 2PCS $0.39 (2 Bids) Time Remaining: 7d 4h 41m |
 AquaMaxx Carbon One Activated Carbon Filter Media 32 $8.24 Time Remaining: 19d 7h 22m Buy It Now for only: $8.24 |
 Activated Carbon Aquarium Pond PHOSPHATE FREE 1 pounds $6.95 Time Remaining: 10d 7h 8m Buy It Now for only: $6.95 |
 Petcetera 10LBS PREMIUM AQUARIUM ACTIVATED CARBON+BONUS $35.99 Time Remaining: 19d 3h 32m Buy It Now for only: $35.99 |
 NEW Bulk Aqua Tech ACTIVATED Carbon For Aquarium Pump Filters and Filtration $14.25 Time Remaining: 3d 4h 4m Buy It Now for only: $14.25 |
 AquaClear 30 Activated Carbon 19 Ounce $5.49 Time Remaining: 19d 9h 56m Buy It Now for only: $5.49 |
 20 oz Acurel Premium Activated Filter Carbon Granules aquarium filter media $14.96 Time Remaining: 20d 12h 29m Buy It Now for only: $14.96 |
 Bulk Aquarium Activated Carbon Pellets 5 pounds $25.99 Time Remaining: 15d 9h 25m Buy It Now for only: $25.99 |
 22 Pounds or 1000 Grams of Aquarium Activated Carbon And 1 Filter Zip Net Bag $14.49 Time Remaining: 8d 22h 53m Buy It Now for only: $14.49 |
Activated Carbon
Granular Activated Carbon
Granular activated carbon (GAC) Granular activated carbon has a relatively larger particle size compared to powdered activated carbon and consequently, presents a smaller external surface. Diffusion of the adsorbate is thus an important factor.
These carbons are therefore preferred for all adsorption of gases and vapours as their rate of diffusion are faster. Granulated carbons are used for water treatment, deodourisation and separation of components of flow system. GAC can be either in the granular form or extruded. GAC is designated by sizes such as 8×20, 20×40, or 8×30 for liquid phase applications and 4×6, 4×8 or 4×10 for vapour phase applications. A 20×40 carbon is made of particles that will pass through a U.S. Standard Mesh Size No. 20 sieve (0.84 mm) (generally specified as 85% passing) but be retained on a U.S. Standard Mesh Size No. 40 sieve (0.42 mm) (generally specified as 95% retained). AWWA (1992) B604 uses the 50-mesh sieve (0.297 mm) as the minimum GAC size.
The most popular aqueous phase carbons are the 12×40 and 8×30 sizes because they have a good balance of size, surface area, and head loss characteristics. "Granular activated carbon (GAC)", also called activated charcoal or activated coal is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions.[1] The word activated in the name is sometimes replaced with active. Due to its high degree of microporosity, just 1 gram of activated carbon has a surface area in excess of 500 m2 (about one tenth the size of a football field), as determined typically by nitrogen gas adsorption. Sufficient activation for useful applications may come solely from the high surface area, though further chemical treatment often enhances the absorbing properties of the material.
Activated carbon is usually derived from charcoal. History of carbon filters Carbon filters have been used for several hundred years and are considered one of the oldest means of water purification. Historians have shown evidence that carbon filtration may have been used in ancient Egyptian cultures for both air and water sanitization.[citation needed] 2000 B.C. Sanskrit text refers to filtering water through charcoal (1905 translation of "Sushruta Samhita" by Francis Evelyn Place).[citation needed] The first modern use of a carbon filter to purify potable water occurred in 1862.[citation needed] Carbon filtration was further advanced in the mid 1970's by H. Allen Rice and Alvin E. Rice when they first manufactured a porous carbon block for drinking water use.[citation needed] Currently, carbon filters are used in individual homes as point-of-use water filters and, occasionally, in municipal water treatment facilities.
They are also used as pre-treatment devices for reverse osmosis systems and as specialized filters designed to remove chlorine-resistant cysts, such as giardia and cryptosporidium. Granular activated carbon (GAC) Activated carbon (AC) is a natural material derived from bituminous coal, lignite, wood, coconut shell etc., activated by steam and other means, and each one have different adsorption properties (e.g. bituminous carbon for high chlorine reduction capacity).
We also use various blends of carbon to achieve specific water quality and contaminants reduction (e.g. coconut shell carbon for "sweet taste"). Rapid Gravity Sand Filters The rapid gravity sand filter is a type of filter commonly used in municipal water treatment facilities. Rapid sand filters use relatively coarse sand and other granular media to remove particles and impurities that have been trapped in a floc through the use of flocculation chemicals - typically salts of aluminium or iron.
Water and flocs flows through the filter medium under gravity pressure and the flocculated material are trapped in the sand matrix. Rapid filters are usually built open with the water passing down the filter but by gravity. It has a filter rate of 4 – 8 m3/m2/hr. The tank is made of concrete with a depth of 3.0 to 3.5m. Coarse sand of size 0.4 to 1.5mm is used as the filter medium. Screen Filter A screen filter is a type of filter utilizing a rigid or flexible screen to separate sand and other fine particles out of water for irrigation or other applications. Typical screen materials include stainless steel (Mesh), polypropylene, and nylon.
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Do you need to replace the activated carbon in yr canister filter ?
The activated carbon absorbs many chemical substance in the water. So I wonder if I have to replace it, and how long should I?
Or can I clean it, then reuse ?
Thanks for yr time 
Nah, just throw the stuff out and replace it with a foam/sponge media instead, which will improve both mechanical and biological filtraiton (putting this stuff before the biological media will help keep it unclogged and clean.
Most people don't need carbon because their water treatment plants combined with conditioner makes the water perfectly safe - in fact, if I needed carbon to remove harmful elements I would not even use that water in the first place. Carbon also can't differentiate the good elements from the bad, and can absorb trace elements that are good for long term fish health, such as iodine.
I haven't used the stuff in many years, and the hard core aquarists I've met over the years tend not to as well.
If you do feel you are more comfortable using it, you pretty much have to change it every couple of weeks or every water change to keep it activated.
Activated Carbon Filter
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