I got a 4 foot x 18" "all in one" plexi tank I'm giving away. It's kinda built like the newer INnovative marine all in ones. It's perfect for a sumpless system. It has a built in overflow section that is currently filled with bio balls. ( but if you go reef, you could easily put live rock or marine pure blocks in there). It has room to house a small skimmer, heater, & return pumps all in the back overflow area. Located in San Leandro.