This is the resealing instruction:
http://aquariumadvice.com/forums/f20/resealing-tank-s-8320.html
If you are just redoing the inner seams, then you don't need clamps. <You only need to separate the glass panes & rebuild the tank if there is structural failure.>
You can leave the trims on if they are tight, if they are loose, may as well redo those as the same time.
Basic steps:
1. Remove old silicone seals by lifting it off the glass at the edges & cutting it off the outer seal <the silicone that is in between the glass>. I find a razor and a skew chisel worked best.
2. Clean off all traces of silicone from the glass - a scraper works well. try not to damage the outer seal.
3. Clean area with vinegar, let dry.
4. Use masking tape to mark off the seams so you have a nice clean edge.
5. Apply silicone - use 100% clear silicone without mildewcide or other additive - best to use a caulking gun & a steady hand.
6. Smooth & shape the seam with your finger - wear neoprene glove <non-textured finger tips>.
7. Remove masking tape while silicone is still wet - you have maybe 20 min.
8. Let it sit for a week to cure. <Read silicone instruction, some need longer.>
9. Test fill for leaks.
