From what I have seen, most people who have problems with them claim they just waste away over time and die in a month or two. I have only kept one and it was like 15 years ago when I was a fish keeping idiot, so I can't give any first had experience on these ones in particular, but I have seen it happen to others.
Now I 100% quarantine all plecos by themselves for at least a month just so I can completely monitor their food intake.
Now I 100% quarantine all plecos by themselves for at least a month just so I can completely monitor their food intake.