I currently run a Kessil H80 on a 20" cube trigger systems ruby sump. It is a relatively small sump and i get a decent amount of light spill into the main chamber with my protein skimmer. I'm seeing a decent amount of algae growth in the skimmer and the compartment holding the skimmer. Here is a top down shot. I'm looking for some sort of black acrylic clip on shield to keep the light out of the main skimmer section. Looking to see what others have done to address this issue.