Careful with driftwood as it will lower your
pH. Which of your tans has the algae problem? I notice one is lit by a desk lamp and a window. Natural light may be the cause of the algae. Plants could actually help the Algae problem because plants will outcompete the algae for nutrients.
Do you know how many watts of light you have in the other two tanks? That would be useful info when making a decision what plants will work for you.
PS welcome to plants...I thought of them as decoration at first but they are so much fun!