How do you stack Sponge filters?

quasar

Piranha
MFK Member
Jul 16, 2012
929
110
76
Montreal, Quebec
Hey guys!


So here's the deal, I have 1 ati sponge #5, I bought a second one on ebay. Now today I went to go buy some Seachem prime at my LFS, and I saw they had a SeaPora 136 on special for $6. So I bought it and figured I would try to triple stack my sponges or worst case use it in my 10g. Now I tried to put the Seapor on my ati and no go. So now I'm worried, is my ATI made weird, or is it that these two brands don't fit together? The sponge and plastic look pretty much the same. Any ideas?

Also when it comes to stacking, do i just take the base off of one sponge,take the top piece of the other and basically snap them together?
 
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