Here's what I do: If you can immerse the branch completly in a bleach/water solution that do that. If you can't fit it into anything than make up a spray bottle and give it a few good sprays, maybe every half hour for 3 or 4 times. Now take the branch and let it dry in the sun. Now pre-heat your oven to 300 degrees or so and bake it in the oven for a half hour or an hour (keep an close eye on it although you shouldn't have to worry about it catching fire at such a low temp.) Turn off the oven and let the branch cool right in the oven for a couple of hours and you should have a healthy/sterile branch for your new pet. Good luck, Scott.
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Injustice anywhere is a threat to justice everywhere.
Martin Luther King, Jr.
"In any civilized society, it is every citizen's responsibility to obey just laws.
But at the same time, it is every citizen's responsibility to disobey unjust laws."
—Martin Luther King Jr