I have two large corner overflows. They work great, but they slots are a bit to large and one of my clown found a way into the sump and got caught in the filter media.

Question 1. What material would you recoment placing on, over around, behind....the slots? How woudl you fix this issue?

Question 2. Now that I only have one O. clownfish, could I possibily purchase another one? Or maybe a different type?

Thanks!

Sammy