I'm from lebanon and I'm planing to make a special pool for platypus to grow in.It's my dream,is it possibel?

All good answers, I won't repeat what others have stated but will add the little known fact that a male platypus can be very aggressive and protective, has a spine on their rear foot which contains a venom which causes a nasty and very painful sting. It's not lethal, but it hurts enough that you may wish it was.