Hello, I’m looking at purchasing a 450 gallon aquarium 8x2x4. Someone put in a lot of work putting in a background….I’m sure its made of concrete or something but I don’t know. Will you guys chime in and let me know If I’m able to remove it somehow? I stuck my hand in and tried to move it with my fingers and it’s on there good. I don’t really have any close up pictures of it but I haveI’m thinking of getting the tank but taking the background out if I can. He’s asking $1500 with tank,stand,sump and canopy. No lights. I want to make it a freshwater tank. Please let me know what you guys think. Thanks