I'd purchase a Tunze Nanostream or the new Hydor Korelia's
These new style powerheads have a diverse flow vs the standard powerheads direct flow..
all in all the new tunze/hydor have a better diverse and more gentle flow.. They are also very efficent with the wattages they consume as well...
There's also the SEIO's too, they are nice as well, I use a couple 820's in my 90.. I have a Tunze 6060 coming soon as well
