Hi. My new set up (38x15 tank) requires some form of hood and light. The problem I have is my hight is restricted, 12cm from the top of the tank to the underside of a chimney breast. I have considered a sliding glass cover but then I have lights to fit in. With my small tank it has a plastic cover with built in light, but I can't find this type anywhere. I could fit a plastic hood in and then fit a light, but it seams much easier buiying a complete unit. Can anyone help think of a better idea. Nearly forgot. With a sliding glass cover, how do u fit pipes etc in through the back