I found two monarch caterpillars....?

Question

I found two monarch caterpillars, I wanna keep 'em and let them go when they are butterflies but I have no idea how to take care of them, i have a big glass tank...

Answer 1

If you put them in a glass tank, make sure they get enough air. I.e, cover the top with some kind of gauze, or wire.

Feed them green collards: they absolutely love it!

In a few weeks... well, you'll see what happens!