SLS is pretty common, look on dendroboard.com and you will find a ton of discussion on it. But basically it could be the parents diet as well, so even if you do everything "right" for the tads they could still get it as a result of some nutrients being lacking from the parents diet.

As far as the upturned back leg thing, never even heard of that. You really should try posting something on dendroboard.
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A room of herps.
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