FishForums.com - View Single Post - How do you know if your sponge filter is working?

emc7 · 09-07-2006, 11:26 PM

I don't put sponges in the mechanical category at all, you can make them more mechanical by adding a strong powerhead, but the airline is just fine for biological. For a hospital tank, they are perfect, just siphon the uneaten food off the bottom and squeeze the sponge out in the waste water. If grunge comes out of the sponge, then its working.

09-07-2006, 11:26 PM	#6
emc7 Senior Member Join Date: Jul 2005 Location: Johns Creek, GA Posts: 3,287	I don't put sponges in the mechanical category at all, you can make them more mechanical by adding a strong powerhead, but the airline is just fine for biological. For a hospital tank, they are perfect, just siphon the uneaten food off the bottom and squeeze the sponge out in the waste water. If grunge comes out of the sponge, then its working.