Hello and welcome to the forum. What size is your tank? Yes, you can put some plants along the divider to block the view. You may have to put one of them in his/her own tank if they are getting too stressed out.
Help you seem to know slot and I need to know what to do I have a male and female in the same tank with a divider the female does not even notice and the male is flaring like crazy for two days can I put a plant in the middle of the divider or remove one help a.s.a.p