I bought tall (5ft) Lucky Bamboo (Dracaena) and it is in a vase with water. Why does it smell/have a film?

You need to change the water in the vase once a week, and once a year, pull it out and trim all the dead and mushy roots from the bottom. You should also go to the nursery, and get some Lucky Bamboo Fertilizer. It needs to get nutrition from somewhere. Byee

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