Hopefully, this will also serve you some purpose. Here's how I hung my old aquarium lighting, specifically the Current LED System. Scalable up and down for easy adjustment.

Note:
Let me know if this doesn't or does fit your enclosure, are walls in your enclosure obstructing the hangar? I would love to hear your feedback I kept this file saved and can make adjustments if there is a common problem.

Supports:
No

Resolution:
0.20

Infill:
15%