So I decided to divide my 10gal. today using Top-fin divider. I wasn't really sure what to do since I had a feeling that the screen would still let them see each other and now they just flare at each other. Is it okay if I were to give it a day to see if they calm down from it? Or would that hurt them? Or is there another trick to darkening the screen? Here's a picture of my set-up:
I actually had to hot-glue a leggo in the corner of it cuz there's this 1/4in gap between the divider and the glass but only on the top corner but not shown in this picture.