As a large, arboreal species, the mangrove snake (Boiga dendrophila) needs a large terrarium at least 4 feet long and 3 or 4 feet high. There should be many climbing branches, vines and resting platforms in the terrarium, especially near the top, as this species takes it food by ambushing it from above. A large water bowl is necessary to help maintain humidity of 80 percent to 90 percent and as a bath. This water should be changed daily. An average temperature between 85 and 95 degrees Fahrenheit is necessary, dropping slightly at night. Many specimens appreciate a heat lamp near the top of the terrarium. The substrate should be one that can hold substantial moisture and the terrarium itself must be waterproofed.
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