It's possible that your new budgie has some sort of respiratory problem. Possibly an infection. He needs to see an avian vet asap.
Did you quarantine your new budgie for at least 1 month before introducing him to you older budgie? This need to be done to prevent the spread of illness.
Also, the picture didn't come up.
Thank you for my wonderful signature Deb!!!
RIP Pepper, Peatri, Holly, Mini, and Quarty