The reason I have chosen a Retic is because I dont exactly have the space for a 500 + tank at the moment but plan to build or purchase a custom 1200+- upon the completion of my new home's construction. I have a few options as far as 200+ gallon tanks go at the home I'm living in now and would like to get a head start with rays before I get into leopoldi's and such. thanks for your input guys and as always your knowledge is much appreciated.