Albert Thiel
I don't know how many of you know him or what he's done for the reef community, but he was a pioneer in reef keeping and he has cancer. He and I go back some 32 years when I was buying Dupla Bio Balls by the 20 gallon box. He's written several books, all of which I have and highly recommend.
https://www.gofundme.com/albert-needs-our-help-and-support
https://www.gofundme.com/albert-needs-our-help-and-support