Drift wood from the beach’s of Maine. Natural, one of a kind, terrarium, beach house decor. I have washed them and cleaned them. But if you would like to use it in an aquarium then it just has to be properly soaked.
Brush down any extra debris you may see, boil for 15-20 mins. Doing this will destroy micros, ally, fungi and any other bad stuff. After the dirt 15-20 minutes dump off water and repeat 1-2 times. You can either dry and put into a reptile container or leave wet and sink in a fish tank.