Hello all, I'm a new member (and new citrus tree owner!) and had a question for you experienced members. I just bought this Tangelo tree and have been doing some research because I want to take great care of it. I know you are supposed to remove sucker branches ASAP. This branch appears to be right on the graft line, and I only want to remove it if truly necessary because it is rather thick and looks healthy. Any help identifying this as a true branch or a sucker would be greatly appreciated. Thank you!