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Discussion Starter · #1 ·
I just got my new DYI sump set up and now that I have baffles I no longer seem to need a sponge on the intake of my return pump, should I just leave it off or is there another reason to have it on ?
 

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I would leave it off.

IMO they just become detritus traps -> nitrate factories, and one more thing to clean. If there was a possibility of injuring a fish or invert, that would be the only reason I would use a sponge.
 
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