I am buying a used fish tank through an online classifieds service. It seems sort of sketchy. Just wondering if anyone has any yips for authenticity? It supposed to be a ninety gallon with a stand, filters décor, and possibly fish for 350$. They said they would keep the water I. It so I can be sure it holds water. I can't yell by the pic if it is actually 90 gallons though and its a bit of a drive to go get the thing. I guess I would just like some opinions on whether this is a good price or what questions I should ask to make sure it's legit? They're sending em the dimensions after work. Do most 90 gal tanks have the same dimensions so I can check this?