I have a Rio Nano Hang-On-Back filter/skimmer for sale.
I bought it 2 months ago from J&L for my rimless 10g nano reef, but I just recently upgraded to a 29g biocube, so I don't need it anymore.
It includes everything from the original package, ie. filter media and water dams. It works great and skimmed some black/brown liquid into the collection cup before I took it down.
Paid $40 after tax, now asking for $25. PM me if interested.
http://www.jlaquatics.com/phpstore/s...t_ID=ps-ronano