Monkey gets banana from tube using onother monkey?

This sounds like a classic puzzle or riddle! I need a little more information to understand what you're asking. Could you please give me more details about the situation?

For example, tell me:

* What is the tube made of? Is it a cardboard tube, a metal pipe, or something else?

* Where is the banana located in the tube? Is it at the bottom, the top, or somewhere in the middle?

* How are the monkeys positioned? Are they both outside the tube, or is one inside?

* What are the limitations? Are the monkeys able to use their hands or other tools?

Once I have more information, I can help you figure out how the monkey might get the banana!