Rena FilStar XP1 for a 40 gallon?

Orion

Ultimate Fish
Moderator
Feb 10, 2003
5,803
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Kentucky
www.thefishcave.net
#5
The XP's have a divider that seperates each media compartment into two, a top one and bottom one. So with an XP1, you could have two types, an XP2 4, XP3 6.

I too would suggest the XP2 or the Ehiem.