I picked up 2 pieces of black acrylic and then super glued the .20¢ squares onto the corners so I could hang it over the pass baffles. Easy to remove for cleaning /maintenance.Congrats on bagging the serpent!
Did you use dark Acrylic? Do you think all their plastic scraps are reef safe?
Also, did you glue those squares shown in the photo?
Glad it seems to be working for you. I have just noticed I have light spillage so I will try your solution.
Here is a pic of the trap I made...