Personally I am waiting for the 6055 model.
Specs for the three models. Prices from J&L website
6025 - 660 gph - $ 72.61 + gst - non-controllable
6045 - 1189gph - $113.46 + gst - non-controllable
6055 - 264 to 1453gph - $238.27 + gst - controllable.
Tunze multicontroller $283.34.
Link to Tunze info page on the nano streams.
http://www.tunze.com/fileadmin/downl...interzooen.pdf