I have this extra tank for sale. It's approximately 2 1/2 years old. Built by Vincent from Aquarium Artist. Three sides low iron, internal overflow, two one inch drains, 3/4" return. Schedule 80 bulkheads. Set up with the Herbie method with one siphon drain with gate valve at the bottom and a one inch emergency drain for safety. Black silicon in excellent condition. Black acrylic on bottom to protect the glass and a black acrylic box inside the overflow to completely black out the plumbin