OMG crocadiles are the most boring animal ever. All they dois just sit there very still. I went to Australia zoo and they have about a million enclosures for them and they hardley move at all, to the point were a small lizard walked over one and it had no reaction. They are overrated in my view. I am pretty sure it is an alagater at the national aquarium, it lives with rainbow fish, plecos and a giant danio I think.