The Planted Tank Forum - View Single Post - Filling an Eheim 2215 full of ATI hydro sponge
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post #9 of (permalink) Old 12-13-2012, 05:29 PM
Planted Tank Obsessed
Join Date: May 2009
Location: Washington DC
Posts: 385
I recently set up an Eheim 2217 with a 4 inch bottom layer of coarse Poret foam, then added matrix and other biomedia on top, just to be safe.

It's only been two months, but so far it's working great. I think the ATI sponges would work fine, but would add a little traditional biomedia on top.
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