Small power head for 10g nano?

[lorenz0]

I am running a koralia 1 in my 20 tall (just a tad bigger than a standerd 10 but taller) and its alot of flow. If you only planning on keep zoa's and mushrooms it would be perfect. I am almost thinking of switching to one because I am producing to much flow in alot of spots to keep mushrooms and zoa's and they just aren't responding well to it. the green star polyps and the hammer coral love the higher flow.

but yes a nano would be perfect