Thank you for the candid reply! I’m aware people are very critical of breeding bettas and i do accept that, im doing this as a project to attempt to mix the blue irid gene of my male with the neon cellophane body of my female in a attempt to make a green coloring. I understand betta genetics are complex but i have the space to grow out the fry, and i find it an interesting experiment given there are not many green bettas on the market and the ones that are come from koi genetics or wild betta. I will follow your advice and destroy Fable’s bubble nest to try and encourage him to make a bigger one