Oh, awesome! Lol, wow, he started building it within two hours of moving to this new tank. And there're definitely stacks of bubbles on top of each other. I'm very happy. (: Do sick bettas/sad bettas make bubble nests, or only content ones?
I was really worried at first, lmao - I thought the filter was freaking out. See how the bubbles coming out of the filter are really big? And I figured there was no way he could make bubbles that big for his bubble nest. :P
I feel bad though, because tomorrow I'm gonna clean the water and will probably destroy his nest. How often do they make 'em?