Sailfin pleco and a purple glofish

I am going to be selling my 75g, but first I need to remove the pleco and 1 purple glo fish. The pleco is at least 7 years old and about 9 inches long. This tank had some issues before but nothing has died in there for over a year, they both look healthy amd seem fine but quarantine to be safe. They're free, I just put $1. He's a good pleco, I just can't keep a 75g for 2 fish anymore, I just dont have the time anymore.