These guys need a large area, Just because they have dwarf in the name dosent mean they are small, Just are smaller than the other caimans. I wouldnt uses any glass they will break it. They do reach 6ft and weigh maybe 100lbs or more. Also these animals are costly to feed properly. They do need a variety of foods not just feeder goldfish. Also lighting will be an issue. Heat as well, water temps 85 or better and land temps about the same with basking spots around 95 to 100F. They do spend time in the water in capitivity, In the wild they use the water at night. They also are not the nicest of crocs. they have a tendency to be flighty and not real handleable. Males become territoral when the reach mature size. Just some thing to think about.