I often see bubbles escaping from my betta's mouth after he takes a breath at the surface. These bubbles often end up clustering at the edges of the tank. At first, I was really excited and thought it was a bubble nest, but after seeing other pictures, I'm not so sure. Is it a bubble nest, or are these bubbles just a byproduct of my fish breathing? The bubbles are not the huge clusters that I see in other bubble nest pics, and I see them every day, which leads me to think they're not bubble nests.
What do you think?
I'm curious because I hear bubble nests are indicative of good water conditions...which would be good :) When your bettas make bubble nests, how often do you see them and what do they usually look like?