Before committing to a hard fold, make a soft fold to be sure it is properly placed. [1] X Research source The larger the paper, the larger the tank. If you are doing this for the first time, using a larger sheet of paper (at least 8. 5 x11 inch) will make the process easier. [2] X Research source You can also use origami paper. [3] X Research source

Fold each end up. The end with the larger point (which looks like an arrow) should rest on top of the smaller end.

You can also use a small piece of rolled up paper.