i always use two coats of black spray paint .
The sheen of the paint dosnt matter you will view it thru glass its automatically gonna be shinny ,until the algae grows on the glass.
If you want to make sure you have good coverage use a flashlight inside the tank while it lays on its face if you see light spray another coat
The sheen of the paint dosnt matter you will view it thru glass its automatically gonna be shinny ,until the algae grows on the glass.
If you want to make sure you have good coverage use a flashlight inside the tank while it lays on its face if you see light spray another coat