Can you describe to me how your Dums act immediately upon being introduced? I have a pair of Acrantophis that were in the same cage forever..I then moved them into a bigger cage and w/in an hour the male had the female in a "death coil"..no biting, just a total death grip! I separated (manually untangled)them and reintroduced them 2 hours later..same result! They've been apart since..like a month now.
I reintroduced them today just to observe..they have been off heat for 3 weeks or so and are dropping into the low 70s for now. The reaction was immediate..the female wanted no part of him and fled when he touched her..he was arching his back high against the back wall, he defecated, and was slowly following her trail.
I'm thinking the cage change coupled w/the natural decrease in temps might have triggered him a bit, but not her?? I'm curious as to how your Dums initially react.
Bill