The Planted Tank Forum - View Single Post - Bioload too heavy for a sponge filter?
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Old 01-27-2013, 06:20 AM   #6
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Location: Boston, MA
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My tank is only about 2 months old. I don't think it's fully cycled yet, but I used a liquid test kit and my parameters are a little off.

0.25 ammonia
0 nitrites
5-10 nitrates

I'm using an air pump for the filter.

I thought the sponge filter might not be adequate because there's just a ton of detritus from what I suspect to be mostly the tetras' feces. And since sponge filters aren't really mechanical filtration I thought this might be a problem.

Though I read that just leaving all the poo is fine.

Anyone have any experience?
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