I had a Vertex IN-180 in a 33 gallon...here's a pic
Specs for IN 100
http://www.reefsupplies.ca/canada/ve...-sump-skimmer/
Specs for IN 180
http://www.reefsupplies.ca/canada/ve...-sump-skimmer/
And you might want to look at the BM's, they take up en less space since the pump is inside the skimmer
http://www.reefsupplies.ca/canada/bu...-nac6-skimmer/
Ray