Well to start off, I bought a TruVu 80g acrylic tank off of craigslist for $150. Sweet deal since it included a sump and a ASM G1 skimmer. I have buffed out the minor scratches on the inside and outside of the tank and now it's time to deal with the tape residue. The previous owner had applied a two inch wide band of black electrical tape surrounding the tank on the top and bottom ends. This was to hide the water line and what he deemed, unsightly bacteria in the sand. The tape had been on for two years. When I pulled the tape off, just the vinyl came off, leaving a very hard adhesive residue. Anyone have any tips on how to remove this safely from an acrylic surface?