In Tank Filter

Hey everyone just wondering what I can use to cover a hole from my in tank filter. It's located in the back of my tank and I don't want my fish to get stuck in there. What kind of screening can I use where water can still flow through

 

You could use panty hose? Make a "sock" out of it and put it over the filter?

 

I'm not sure where the hole is located but plastic craft mesh sheets are flexibale and can easily be cut to any size.

 

You could use panty hose? Make a "sock" out of it and put it over the filter?

It's a bit strange it's a hole where the water flows into the pump so it would need to be able to have water constantly flowing through it

 

I think panty hose let's the water run through it? Or you could do the plastic mesh and sealant? Hot glue? It onto the filter. I have an ApI 10 that has large holes in the back.