Small disposable Helium Tank 8.9 cubic feet
18″ Round / Heart Mylar/(tinfoil kind) Takes 0.5 cubic feet Per Balloon
12″ Latex Takes 0.6 cubic feet PER balloon
18″ Latex takes 2.0 Cubic feet PER Balloon
3 foot round takes 15.0 Cubic feet PER balloons- so you would need two tanks.
30″ rainbow, unicorn, paw patrol shaped Mylar Takes 2.0- 3.0 cubic Feet PER balloon
Balloon magic dose not approve of the balloons that are included. small and thin….But they do make nice water balloons 😉