I've been researching DIY tanks and craigslist for big tanks and I don't have the time to build one myself and craigslist in CT has no big tanks over 100 gallons. So I am wondering how big of a tank I could get a Petsmart or Petco with $500. Right now Larry my bass lives in a 55 gallon and he is already 12 inches long so I need a wider tank. I was thinking about a 75 but an extra foot would be nice for him to swim in maybe 100 gallon or 120 gallon. Does anyone know how much they go for at the LFS stores? I am going to make the stand myself I just want the tank.