i totally understand your point, but with a good inspection of the seals, glass, etc... a used tank can be just as good as a new tank. also with the money saved you can afford to take some time and reseal the tank if your that worried.12 Volt Man;4603779; said:true, but I don't blame the poster for not wanting to buy used when dealing with large tanks. I wasn't interested in used either (not just because I wanted custom black silicone). when dealing with big tanks, you want the minimum risk of leak/failure possible, and the lowest risk is with brand new, not used, aquariums.
on a side note, any advantage to black silicone over clear? or is it just for looks?