I'm glad you guys like it! Here is more of how I did this. I was able to finish it today!
First I started off with a plastic gutter from Lowes, which I think was around $10-$15. Then I cut it to the size of my tank. Along with the gutter, you want to get two end caps to go on the ends, which I think were about $2 each. Next you just attach the lights to the top, and rest it on top of your tank. The examples I found online used LED lights, but I just used some lights I already had lying around, which were the ones you can mount under kitchen cabinets, displays, etc.

I then had an issue with these lights, they were too wide to use to mount against the gutter. So I got some old wood in my garage and drilled a hole in it and the gutter, attaching them together. This allowed me to mount the lights I had along the wider part of the gutter which fit perfectly. I then screwed those lights to the wood, and then connected the cords between the lights, and taped the cords to the wood to keep them from sticking out. Lastly, I just attached the end caps, I also drilled a little notch for my cord to stick out to plug into the wall, and rested it on top of my tank.
And here are the final results!
I think this turned out really well! If you guys have any questions about how I did this, let me know! Also this will mainly just work with a glass top on your aquarium. I made mine which was pretty cheap and easy, about $15-$20 in all to make them. If anyone wants info on how I made the glass tops, mention it in a response or a PM. Thanks!
*Let the crabby adventures begin!*