poison dart frogs mixed with a FBT will surely lead to its death. This is not opinion like alot of other things on the board. This is fact! If you are interested in darts i really encourage you to make a new tank and get one. They are really awsome animals to have. But anyway back to the orginal question. FBTs really shouldnt be mixed with other animals because they are toxic. Although death isnt imediate, another animal exposed to the toxic secretions of a FBT tank will slowly be poisened. I know some people mix fire belly newts and other critters with FBTs but i have never heard of a tank like that where all the animals lived out their full lifespan. Usually the other critters die "mysteriously". Unlike poison dart frogs FBTs will never lose their poison. hoped that helped.

-johnny mo