I've done some research and can't really seem to find any good evidence that I can't just install new silicone on the front vertical corners. ... i believe most people repair tanks in this manor due too leaks but I don't have any. the remaining silicone is in great near new condition and I'm guessing the previous owner chewed up the silicone due to cleanings. The tank is an aga and is approximately 8 years old. The tank has no leaks and is in great shape otherwise. just wondering if anyone has had any success repairing the corner beads In any aquarium without doing the entire tank.