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Old December 15th 05, 12:53 AM posted to rec.aquaria.freshwater.misc
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Default Eheim filter media options?


"NetMax" wrote in message
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"Daniel Morrow" wrote in message
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Mid posted.

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"NetMax" wrote in message
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"Fish2Keep" wrote in message
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Hello Bill,

may I ask why you replaced your AC 500? I have two AC 110s (same as
500) and they seem to be doing a good job on my 220gal tank.

Bill Stock wrote:
I just got an Eheim 2026 for the plant tank to replace the AquaClear
500. I want to use a spray bar and run a UV filter.

I've always kept a bag of Aragonite in the AC500 to keep my KH/PH
stable as I inject CO2 based on the PH. But I'm wondering about the
best place to add it to the Eheim. I guess the logical choice is to
mix it in with the BioMedia. Although I'm a little concerned about
obstructing the water flow too much.


Aside:

I haven't actually used the Eheim yet, but I think the quality is
over hyped based on my initial impression. The media options are far
more restrictive than the Fluval. I like the auto shutoff valves on
the Fluval better. No question the construction of the Eheim is
moderately better, but at three times the price of the Fluval I
would
hope so.I do like the settling chamber idea on the Eheim, now if
they
had a back-flush valve for intermediate cleaning. I guess the real
disappointment is the manual (complete with spelling errors), it
looks like they ran the German version through Google translator.



What you need to keep in mind is, they work slightly different from
each other, without a doubt the Ehiem will give you more clear
polished
water and do a better job than a Fluval canister filter overall. The
Ehiem is designed to filter all water that passes through it. Were the
design of a Fluval canister filter with it's baskets is designed to
also let some water pass around the baskets without getting filtered
(probably to put less wear and tear on the motor) to keep and even
flow
going without restiction.

But this means it will do a slightly worse job than the Ehiem.

Agreed, however what does a slightly worse job mean? If it means that
the water is not kept as clean, then you may be running too close to the
operating limits of the filter. It *will* mean that for equal flow
rates, one filter will clean faster than the other, but if the water is
already clean, the difference should only be apparent the first time you
use it, or every time you dirty the water up. Makes sense? Another
factor is that most filters (dependant on media, ie: closed or open cell
sponges) rely on biofilm to a certain extent, to cause particulates to
stick. This is why a brand new filter (any manufacturer) is generally
not the greatest, and only really starts polishing after the biofilm
develops. So much depends on your setup and the circumstances.
--
www.NetMax.tk almost always ready to *gently* stir the pot ;~)


You're not referring to bob marley are you? ;-)



Once had a boss who wished that I wasn't so quick to stir things up from
the status quo, so I told him that I would try to stir gently. I think
his exact term was that I was a sh*t disturber ;~).


I've always considered that a positive quality.


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www.NetMax.tk


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http://www.fish2keep.com
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