I’ll just leave this here
https://www.monsterfishkeepers.com/...efully-underappreciated-sponge-filter.357979/
https://www.monsterfishkeepers.com/...efully-underappreciated-sponge-filter.357979/
I don't use air pumps at all, my are either attached to the intakes power heads, or water pumps, or placed inside the outer pump cover casings, the way pond filter use them.Wow a lot members here use sponge filters.. Do you guys use heavy duty air pumps to power them?

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[/URL]Why do you place the sponges behind matten filter sheets? Do you have pictures of this setup?I am using 4 of these connected to powerheads , 4 by 4 by 15 inch behind some mattern filter sheets, work brilliantly on my 815L, less then 40 watts for over 4600lph turnover and takes 5 minutes to clean them.
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I am using 4 of these connected to powerheads , 4 by 4 by 15 inch behind some mattern filter sheets, work brilliantly on my 815L, less then 40 watts for over 4600lph turnover and takes 5 minutes to clean them. whrer did you get those sponges from ?
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