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-Add water once water level goes down below roots 

-Make sure there is enough sunlight in the room.

-Follow this tutorial

-Enhance the beauty of your house or office.

Hang on a well in a main space.

Yes but slower, 

We advise when the roots are too big for the glass, to put them into a bigger glass so they can grow even more. 

You can always cut a leaf and added it back to the test tube & expend the plant family.