What is the standard size of a 40 gallon tank?

Question

I am thinking of purchasing a turtle, and a website says it needs at least a 40 gallon tank. Is there a standard size for that size of a tank? I have limited space, so I need to know. Does anyone else own a turtle and have a different opinion?

Answer 1

36"x18"x16

Answer 2

Unless you're getting something like a Leaf turtle or Speckled Padloper, I don't know of any water turtle which can live its life in a 40 gal. tank.  The rule of thumb is 10 gal. of water per inch of turtle shell length.  So, if you're talking a RES; it can get 10"-12" as an adult female, and require a 100-120 gal. tank.

It would help if you told us what kind of turtle you are purchasing.

Good luck, and enjoy your new pet.  

Answer 3

Approximately 40 gallons worth of size.