Recently I have acquired a 100g tank from Trinh (thanks again). Basically the plumbing is mainly done got stand, canopy, lighting, sump, pump, LR. The problem is the tank needs to be cleaned it has a ton of dead coraline algae all over the walls of the tank front, sides, and back. Trinh suggested filling it and soaking it with a mix of viniger and water. Sounds good in theory but thats a ton of water to simply waste. Also the tank does have a few scratches any way to buff those out somehow. Another issue is the sump is covered also and it is acrylic. Any suggestions on how to clean the tank quickly and easily? How to remove old sand? Thanks and I will try to post a picture later i am at work now. Thanks