Thanks Doug. On the power thing, I believe the 6080 consumes 14 or 18w...it's listed on the Tunze site.
My only concern is whether a one-sided flow pattern would affect the SPS and force them to grow sideways!
I have to give serious thought to the 6110 kit, as that one has a variable speed and can be pulsed with the controller.
One of the SPS keepers on this forum bought one, so I'm hoping a review is forthcoming
I'll probably drop in at J&L on Monday, so if they have any instock, I'll see if they'll drop one in a tank for a demo!!