I'm buying a boat load of tanks off of a man I know. Most of what he has are 10 gal through 29 gal, but he does have the complete setup for a 40gal and a 120gal. There are 9 tanks in all....I'm getting the at a great discount of $200!!!(including the 40gal and 120gal). My question is...Should I set up one tank at a time or would it be easier setting tham all up at once? I know I want to set up the 120 gal (saltwater) first then a marine quarantine, then the rest....Just curious if setting 9 tanks up at once would be a disaster...??? Thanks!