Sailfin & Iguana

Question
I currently work at a college, where we have an animal unit, we currently have a female sailfin lizard and a male green iguana, both good natured, both neutered. They are housed seperatly at the moments but we would like to put them together? any thoughts??

Answer
It doesnt matter if they are neutered,  Lizards are territorial.  And you never mix species from different regions, even if both are tropical.  Green iguanas are from primarily Central and South America, while sailfins are from Phillipines.  Let each have their  own territory, they will be happier.