I've also got a 55l viv and have 1 adult male and a juvenile female who get on very well....the problem with buying two beardys at the same time is they are very difficult to sex when they are young. I bought my male first then once he was old enough to sex I then went back to the same reptile specialist and bought my female beardy....the specialist was kind enough to keep hold of what we thought was a female beardy long enough so we could sex her! I do agree with Snuggles about the two males together....defo no no! My two are now living very happily together.

Good luck!