I am an education coordinator working with a group of awesome teens that are constructing the Version 2.0 airlift system window-farm. We have an aquarium pump suitable for a 13-gallon tank with just one valve. The pump we are using is from Petco (Link provided for the visual) http://www.petco.com/product/119290/Petco-Air-Pump-for-Freshwater-And-Marine-Aquariums.aspx?CoreCat=OnSiteSearch.
Will this pump work for the 2.0 airlift version? Should we return the pumps and get two valve aquarium pumps?
We will finish constructing our 2.0 airlift system window-farm this weekend. We are having a blast learning and constructing the window-farms, in addition to contributing our discoveries through the window-farm.org forum. Here are a few pics of the initial setup. I will post our complete setup soon.