I was just wondering whats the best way to re-start a tank? Meaning, you've got a tank that once was used for fresh water fish and was drainded and not used for over a year. There seems to be a film of clear scum all over the sides of the tank...is this water marks, or true scum/dirt? I know it has to be cleaned, I'm just not sure on the best way to do that...what if anything should I use to do the job, asides from water? Thanks,
mt_marcy
mt_marcy