yes. most likely a simple bulb change wont do. you might get away with basic low light plants though.changing bulbs wont help you. you need more light.like said above you can use t-8 shop light.
i have some 29g tanks now, and my low light has a 65watt bulb on it and is on 7hours a day to keep the algae down.
grass like plants and marimo balls need medium lighting around 2.5wpg to grow.