Thin strechy plants you have there and no that does not just come with use florescent lighting. It is all on how you use the lighting and how you top and train the plants. I am running all florescent lighting for my grow mostly HO T5. My guess is you have the lights up way too high, they need to be right on the plant almost touching. If and I stress the if, your plants produce a half way decent yield the stalks are so thin and stretchy that they will not be able to support the weight of the buds. Here are some pics of my grow that started flowering on 4/29 you can see the huge different in growth. I have my lighting as close to the plants as possible and the plants are surrounded in light.
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The second pic is a weeks or to older than the first.