Ewakano

Hi! My name is Evan I’ve had my mud turtle for about 4 months now, and I was told that corydoras make good tank mates for slower turtles. I have 3 now and they are doing great. My mud turtle ignores them and everything is peaceful. I was just told that they are horrible for turtles because if they get eaten it will block thiamine. anyone else have corys and turtles together? Specifically mud? thanks