I've got a section of my sump that I want to use for chaeto fuge, and an H160 light. To help reduce light creep throughout the rest of the sump I'm going to use some black acrylic on the inner side walls of the fuge. What are your thoughts on using silicon to secure these sections to my sump walls? or do you think I should just 3d print some clips to hold them in place? Here is a drawing of the sump for reference. Its an interesting design...the fuge area is independent allowing me to control flow through it. MRC build it to my specs a few years ago