I have a 55 divided with a 2.5'' grammode and a 3'' istlanun. Both males, My hope is to bring out the personality in the grammode and also to get him eating. They obviously don't like each other, as they both spend most of the day trying to attack each other through the divider. I figure they will fight while trying to establish dominance but then after that, it is a crapshoot if they can co-habitat together. Do you guys think it is worth the risk to give it a go?