I found a guy that is trying to sell a 75 G tank with metal stand, wet/dry filter with blue spikey ball filter (as he puts it), Fluval 303 canister filter, and some other odds and ends for a very good price. It was originally set up as a saltwater tank. Is it possible to convert it to a planted freshwater tank? I really want a larger tank and need to jump on this soon if i am going to get it and if its feasible to do. Just wanted some advice first. thanks