They grow to about 4 inches and like it hot! One end should reach 35C at least and then you'll see them basking direcly under the heat source. The males aren't that territorial so you can keep more then one in an enclosure. Just watch so they dont bully one or more of their cagemates. give them calcisand on the floor and several hidingplaces.In a ten gallon you can keep maybe 4 adults. feed them well and they will reproduce without difficulty. The eggs shuld be incubated on dry sand in 27-29C and 70-100% humidity. Good luck.