Refugium light spill control

[westturnreefer]

To everyone who has refugiums, I am planning and building currently, let me know your thoughts

How many people have issues with light spilling out of their refugium and algae growing in unwanted areas, I've seen a lot of people line the inside of the refugium and black out the sides to avoid these issues what about a reflective film to increase light all around the algae, I'm talking about the mirrored reflective window film, line all 4 sides and the bottom to get the most use and coverage with your light?

 

[A Young Reefer]

this should work. depending on what light you own some sell light visors to limit the light to certain spots.