nope I used some wood putty on the corners and to cover all screws as well, sanded it down and painted over it I know the silicone will stick to the epoxy but I felt it was unnecessary
Im not sure if you can tell from the pic but I laid the tank on its front and put the silicone down then i put the glass in and put a couple of 5 gallon buckets one filled with water and one with gravel to weigh the glass down I waited three days and then put a nice bead of silicone around the edges I then waited another seven days gave it a test fill halfway let it sit for a week drained it waited another seven days put the stand together and BABAM! plywood tank