Your design of the tank is excellent, only adjustment would have been to mount the uvb from above so that it projects the uvb straight down to the dragon. But yes, with very small babies it's better to start off in a smaller enclosure so they are sure to get proper uvb and also avoid jumping and possibly hurting themselves. I raised probably over several thousand of them and always used the plastic tubs. No baby ever had a broken bone or even a sprain or lack of uvb. Hopefully your little dragon will heal up O.K ! By the way, I think you said that you are in Serbia, I like to watch the NBA Denver Nuggets basketball team here in the U.S. with Nikola Jokic , what a player he is !