I saw this on ebay. The price is now 107 with 2 days left. It is a 55 with two tubes that connect them. Discuss the advantages and disadvantages of having this setup. \n\nAdvantages I can think of is having fish swim through the tube would be pretty cool. Also I could block off the tubes and have more aggressive fish or a snowflake in one side and safer fish with corals on the other side but keep the same amount of water flow.\n\nDisadvantages would be cleaning inside the tubes and if fish wouldn't like to swim through it and therefore cut their swim space. \n\n\n[url]http://www.casco-group.com/USFS-specialty.html[/url] go to the tube model.