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Thread: Sponge filters
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post #2 of (permalink) Old 01-14-2013, 06:54 PM
Planted Tank Enthusiast
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Join Date: Jul 2012
Location: Central Florida
Posts: 843
You need to replace the sponge now and then as it will become plugged up and less efficient. I run them with air and with powerheads and I can tell with the powerhead when they are getting plugged. But of course I would expect it to happen faster with the powerhead.

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