Ok sorry for the delay in responding I was in SA on Fri. & Sat. without the computer and sick as a dog all day on Sunday. It is a smaller tank 45g Breeder glass so only 36" across and 18" tall. I will be having about a 2" sandbed as i cannot quite get used to the BB look. But it still might be an option as I will have a fuge with a 6" sandbed. I didn' thaink about the sump return syphoning the water back I will make that higher. I will also be using loc-line on the returns so that I can adjust the water flow. As far as the drains to the sump yes I will have a inside box that skims the surface to keep it clean and clear. Thanks for the input any other suggestions?