He doesn’t know that he is in captivity. He doesn’t know you don’t have any intention of giving him a female. He only wants to be ready if one turns up.
Either he has worked out that he depends on you for everything, and his internal monologue is as follows:
“This big monkey gives me my food, fresh water and everything else, so when he sees I am ready to breed, he will also provide the female”.
Or else he has gone through a kind of utilitarian monologue in his brain, saying to himself:
“The existence of a desire for something predicts that it exists. I desire food when I am hungry and food comes. I desire for there to be an existence of God, and then God comes to me in my dreams. Now I desire the existence of something else, I don’t know what it is yet, but I know it must be something to do with that thing up there I got strangely driven to build out of my sticky saliva, and air. And when the thing that it is for comes along, I’ll know what it is.”
Continue reading “My betta fish is making a bubble nest, but I have no other fish, he’s the only one. Why is he making it?”