I recently bought a 150 gal perfecto from c-list. I checked the build sticker and it's missing the final digit in 199? Anyways have done the usual fill and sit and seals look good and holds just fine, no leaks. However I'm coincidering stripping the silicone and running a new bead. I have never resealed an aquarium yet, but this tank being at least 10+ yrs old. And having the tank here and not setup, I thinking it would be wise to reseal it. Any opinions from old time tank resealers?... thanks in advanced