We got a used tank and stand at a great price, everything included for their SW setup. We want to use it for FW. At my best guess we have an Aqua Clear Fluval 70, the tank is a bowfront that seems to be 26gal (the previous owners couldn't remember). This thing is honking huge but if it'll do the job and I don't have to spend more, fantastic. Should I clean the bejeezus out of it, or just go new? Thanks.