Ok I am 17 and new with the whole ducklings experiences....I have three baby Indian Runner Ducks named Felix, Figaro, and Knigth and they are all about 2-3 weeks old....but one(Felix) of them is looking like he has a dislocated hip......But he doesn't seem to be in any pain what so ever and he is able to walk but doesn't seem to really like to.....he does have a limp....I am worried about him very much.......I have heard that it could be just their food not having what they need in it.....because I am feeding them chick starter......so I have gotten niacin to put in their water .........Do I need to also give them Brewer's Yeast because I heard that helps.....I also heard that you need to give them regular water therapy to strengthen their legs but I have no idea for how long to let them swim around and I don't know how often to do the water therapy......I would really love to have your guys advice about this....I am just really worried about my baby Felix and I am worried that what happened to him will happen to my other two ducklings.