This forum has removed so much good info
All I could find is this which was unfortunately written by Debbie D. whose standards of care were very low, and who did many horrible things to rats, and also had good info as well as bad info.
Anyway here is the link the Rat Report
yeh I know all about Debbie D, she was quite a study in contrasts. Professed to love rats and on one level may have indeed loved them but doing surgery on them without anesthesia, which if I'm not mistaken, she admitted to and saw no problem with, that really does make you wonder....
will check out that link anyway just in case it gives me some idea of things I should ask