So when I was given the tank I currently have I was also given a piece of driftwood that he had in the tank (bought from fish store) I didn't put it in at first but now after rethinking I want to add it however it will not sink (kinda figured it wouldn't after not being in water for awhile). So my question is what is the best method to get it to sink without having to use suction cups or silicone or attempt to drill slate and the wood to attach it to? I currently have it soaking in a 5gal bucket with a piece of rope going across to keep it sunk down but don't know if this is the correct way to get it to sink or if there is something else I have to do.