wow this is one of them reptiles you only read about in a very few select books that cover the hole varanus family and relatives but never see, or even dream of seeing and here you are posting about them!!!
man the best of luck with these they are truly a living fossil and one of the most allusive, interesting and important lizards on the planet.
i just wish certain members on here would use a tool like google before posting **** and ruining a thread about something so rare because they know F!!! all about it and its doesn't interest them. its one of the reasons so many threads don't get the responses they deserve. this reptile is as aquatic as most turtles, rarer than rocking horse **** and so rare less zoos have them than tuataras.