i have a steel tank for about 2 months now, but isnce i have had it there are a few things that have puzzled me. is it common to have a couple of very very small dents on the the tank? like 2 or 3 mm long and less than a quartar of a mm deep? ive seen some tanks on here for sale with these sort of dents so pressumed they were okay. also my tank seems to be on eof the only ones i have seen with a flat bottom so it can stand up right? any ideas or am i just paranoid?