My personal advice having gone down the route, of building a 4x2x2 etc. If he pulls through go straight for the full size adult enclosure. They will outgrow that 4x2x2 soooo dang fast, and it really doesn't allow for a deep enough substrate. I had my tegu in a small glass quarantine tank, then moved her to the 4x2x2 and she really didn't do too well health wise, It was darn near impossible to regulate the extreme temps, so I had to rush through the build of the bigger cage.
I have never heard too much actual evidence towards soaking boosting hydration in lizards, that being said I have used soaking as a method of getting them to go to the bathroom if they haven't gone in a while.
Here is some reading that I found pretty helpful, I have found the care to my tegu to be almost identical to a Sav, with the difference being the diet. There are a couple large lizard owners on here lurking, feel free to ask any questions that you may have, we may be able to point you in the right direction.
(Based on Iguanas but still some good info) http://www.anapsid.org/fluids.html http://www.anapsid.org/kidney.html
http://www.savannahmonitor.co/
http://www.savannahmonitor.net/housing/
http://www.savannahmonitor.net/gout/
Reply With Quote