I have never attempted to replace the silicone in a glass aqauarium and i was wondering if you can replace the inner bead of silicone without having to replace the actuall bead holding the glass together. Is there a company out there that does this or is it easy to do yourself? If there is another thread out there on MFK let me know what i missed. I figure there has to be a way to remove the silicone inside the tank without having to take it all out and start from scratch. Thanks for the help.