how often to replace filter floss

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wildman117

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May 13, 2008
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on my 55 bow front i have two Marineland Emperor Bio-Wheel 400 Power Filters that i have filter floss in and behind that i have sponges
i have heard alot that you shouldn't replace your biological medium but i am using this as a mechanical medium but i am wondering if i can replace all the filter floss periodically as it gets dirty and if that would really disrupt my bacteria colonies
i have tried just washing it out in tank water but it does not get all the dirt out of the floss so i want to know if i can change it out

thanks for the help in advance
 
thats what i was doing but then i started seeing people say you shouldn't change it out so i started to worry
 
I toss it. No need to keep that ticking nitrate bomb in my filter.
 
I rinse it out in a bucket of tank water, i don't see a point in chucking over half the bacteria in my filter (it should be noted that my penguin350 just has floss and the biowheels) when i can just rinse 'em out.
They slowly deteriorate though (which says something about the bacteria involved, as it's made out of plastic...), so every few(or lots of) months i replace one at a time.

The more often you rinse it the less often you'll need to replace them.
 
I toss mine every water change. Polyfil is cheap enough not to worry about. I run sponges, Polyfil and ceramic rings in my HOBS.
 
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