Size difference between Koralia and Maxi Jet
 

my 10 gallon tank currently has a single MJ 900, but I'd like to upgrade that. I know two powerheads would be a better solution, but the tank is so damn small that I really can't afford the space.

I'm thinking Koralia 1, but I'm wondering what the size difference is between the two? Alternately, are the koralia nano's small enough to fit two in a 10?

The nano Koralia should fit perfecly in the tank.

I'm sure it will fit; the MJ fits nicely now... It's just too large to fit a second one; I'm curious whether or not the nano is small enough to be able to hide two of them.

Oh, if only there were a Vortech nano:)

anyone?

Get 2 koralia nanos or 1 koralia 1 if you have to. The opposing flow would be much better, but do what you can. If you place the koralia 1 at the bottom in the back and aim it so 1 area of flow goes right and one left then you will probably be ok ( the koralias shoot a v pattern of water).

I have a K1 and must say the flow is pretty weak. I would think about a K2 if it will fit