[helgymatt]

If it says its sized for a 20 gallon, you should really believe its only good for a 10 gallon. I would get something better. A HOB fitler would probably be better than that.

 

[helgymatt]

Rena XP2 would suit you good.

 

[helgymatt]

Unless you plan on going to a large tank, an XP1 would be great. It's what I use. I just hate the pipes...better than green I guess. =p

Difference with the xp2 compared to xp1....
XP2 had two media trays compared to 1
Xp2 has a little more flow...it its too much you could turn it down a little.
Xp2 is not that much more $