CPR CITR 3 /=IN TANK REFUGIUM

[BoxKing]

CPR CITR 3 IN TANK REFUGIUM
I’m getting ready to set this up in my sump on my RSR XL200. Growing Chaeto, paired with ACKE LED Grow light mounted on the side of the tank, pumping in light from the side where the suction cups are.

I want to prevent as much light spill into the sump, so what are my options...? Ideally spray painting the other three sides (white) would allow for the flow cutouts to function, and not to mention a 10 minute DIY.

Thoughts, suggestions?

 

[SPR1968]

Maybe some black acrylic panels or something?

If you use paint just make sure it’s not toxic

Maybe someone else can help with better ideas