Question 1

Why does the manual say to remove the carbon pad after about 2 weeks? This is the only filter I've owned that isn't running any kind of carbon..Thanks

Accepted Answer

I ALWAYS run activated carbon in all 3 of my Eheim filters.  It won't hurt anything and if there is a spike in ammonia, it takes care of it.  I buy the carbon in bulk. Try to stay away from softer carbon that tends to put off dust even after washing it.  I use the https://www.amazon.com/dp/B01BX8EJT0?psc=1 .  You can use it in your refrigerator, cat litter box, car, and a lot of other places too.  It comes with a bag in each bottle, but I use my wife's old panty hose and just tie a knot in it to seal. Rinse it after putting it in bag. You can place it anywhere in the water column of the Eheim. I put mine at the top just below the fine (white) filter.

Question 2

What is the average maintenance cost would be for this filter such as replacing the bio media, carbon filters, etc. and how often.

Accepted Answer

You're probably looking at $20 a year, MAX.  The filters you can take out and rinse/clean in the sink.  The other stuff, you don't really ever replace or clean.  If it get bad, you can rinse in RO water, but never tap.  Tap water can kill the beneficial bacteria that has built up.   Only clean the floss filters.

Question 3

So i see this has an output of 264 gph - enough "real output" for a 50g community? or is there something better in the eheim classic series?

Accepted Answer

Ideally, a filter should turn a tank over 3-5 times an hour.  Meaning it should completely filter all of the water in the tank 3-5 times an hour.  I shoot for 4.  Since most filter companies state their gph (gallons per hour) with 0 head (top of filter at water level so the pump doesn't have to pump water vertically) and sometimes they overestimate, that is why I shoot for 4.  However, Eheim is typically spot on.  If the pump has to pump the water vertically to get it to the tank it will reduce the gph that the pump can produce.  Since 264 is 5.28 times 50, it should be more than adequate even if sitting on the floor.  Remember that there are different filtration requirements depending on the stock of your tank.  If you have community fish that are stocked properly this may be too much flow (water moving through the tank creating a current that your fish have to fight against, fish will not like constantly fighting a current, especially those that have difficulty swimming ex. fancy goldfish), however this may be perfect if you are overstocking a tank for cichlids or the like.  Happy hunting!

Question 4

will it work on 220AV?

Accepted Answer

No

Brand	Eheim
Color	Green
Material	Plastic
Style	Modern
Product Dimensions	11"L x 8.07"W x 15.75"H
Power Source	Corded Electric
Item Weight	14.64 Pounds
Maximum Flow Rate	1.6E+2 Gallons Per Minute
Manufacturer	EHEIM
UPC	720686222113
Part Number	2217 370
Item Weight	14.64 pounds
Item model number	2217370
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

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Eheim Classic 600 - 2217 Canister Filter Parts

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