So my betta has been very happy, eating well(although she is picky!) and blowing tiny bubble nests everyday. I've notice though, that when I come up to the tank, she'll come up to the top and blow a bubble at me. She'll hangout at the top for a bit and follow my finger around, but it's always just one bubble that is a little bigger than the ones she blows for her nests. Could it just be her exhaling? I was unsure because she only does it right when I look into her tank, and not everytime she comes to the top for air.