Sexual selection may sometimes be applied between species

Hi, Bloggers!

I found four tiny eggs of Medaka, Oryzias in my small aquarium. Some of the, show small eye balls already, and looks hatching soon. I have heard that parent Medaka sometimes eat their kid unintentionally, so the eggs should be escaped from the aquarium. Medaka has habit to eat anything move in front, even if it is a family. No perception nor instinct to protect its descendant. Oh, how pity Medaka is! 

So, I should pick the eggs out of aquarium and move to another one to give them a safe condition. Life is matter, is spite if its physical size. Point is it produces sympathy in my mind or not. The decision happens probably based on habit of sexual selection that we species tend to take care of tiny or beautiful objects to secure. The habit may sometimes be applied between species.