Hey Growmie,
The stretching is being caused because the need more light 8 watts isn't a lot at all which is why the seedling is stretching so badly. The only problem this can cause in the future is the seedling could actually fall over and you'll need to help it stand back up until it's stronger. Feel free to send me a message if you ever need help, we've all be new at one point, and advice can vital. Hopefully, I answered your question and remember Happy Growing and Free your mind one puff at a time.