Was setting up my 90 yesterday night and was just about done putt the hoods and light on the top middle brace gave way on one side. it is a 5 inch or so piece of acrylic and I was wondering if it actually gave the tank support and was needed or if it was just there to support lights and covers. I was planning to just put some silicone on it and stick it back up there with the tank full but after doing some searching there are different opinions. Should I drain the tank and silicone it back together so there wont be any pressure on the tank or should I just silicone it full. Heres a picture but its kind of hard to see what going on, basically only the back side fell in. I was holding it up with tape so that it didnt hang there and pull the other side off but it didnt work thats whats in the picture.
