Total newb here! I was wondering if it’s possible to apply new silicone to older silicone without causing any issues? I don’t have any leaks it’s just more of a cosmetic thing. This might be a case of me being too picky but the front corners of my aquarium had been resiliconed in black some time ago and there are some areas that are much thinner than others. I was wondering if I could tape these corners off top to bottom and apply new silicone for some wider and straighter lines?