Replace one side of a tank?

[The Grizz]

Yes you peel the trim off then use the smallest guitar string you can find to cut out the seal. 2 pieces of wood dowel to hold on to is a must. Go with the same thickness of glass as the one you cut out so your trim will fit back on. Use only aquarium safe silicone, I use GE SCS 1200 black for all my tanks and so do most tank builders, I think you can get it in clear to but have not seen it myself.