Need a way to seal up tank around filter Frogs jumping

[Nataleeia]

Hi all
Going to be setting up a small tank soon for a Betta and some African Dwarf Frogs.
I need to make sure they can't jump out of any cracks.
I'm going to have a glass lid and I will have a small hang on back filter.

My idea was to get a normal piece of glass cut to go most of the way and I was thinking I then need some sort of maybe acrylic to mould around the filter.

Anyone got any ideas on how to do that? I'm trying to imagine it but I'm thinking moulding acrylic isn't gonna be very simple.
Is there a like go to way that aquatic people do it?

Sorry if that all sounds a bit of a silly way of explaining it...basically frogs go jumpy jumpy, how would you stop them getting out...from what I've read any small hole will be enough

 

[fishguy242]

hi, any type of thin plastic, fine mesh netting, non metal screening

 

[Nataleeia]

Well I do feel a bit silly. It's one of those things I think I'm over complicating in my head. I'll figure out some netting over the filter attached to a piece of acryclic to butt up against the glass.
Thank you