Red Sea S-1000 Sump mod

[Thrillik]

Recently got an S-1000. Love the setup except for one issue currently bugging me. There is a separate rank used as a refugium that is connected by two pipes, one on the foreground of the picture and one behind the black wall. Unfortunately, the black wall that I’ve circled isn’t high enough to prevent water from flowing over it.

Does anyone know of a mod or piece that I can put along this area I’ve circled in yellow? I’m looking to force the water to go through the refugium rather than flow over this black wall.

 

[revhtree]

BUMP for some RedSea fans who may know the answer!

 

[Thrillik]

https://a.co/d/4CAYqE2

I think something like this would achieve what I’m looking for. Does anyone know if this material is reef safe?

 

[Thrillik]

https://a.co/d/b5DDGJS

Found this one made of silicon which should be fine.