I decided to paint fluval edge background. I used black spray. I did one one mistake. I did let the paint dry before removing masking tape… Now I have to repaint rim as one can see from pictures.
Fluval edge masked and taped
Edges with masking tape
Edges are rough. Top and bottom are ok, but sides are not. So back to spray can 🙂
And the rim after repaint (now it is ok)