My betta started pacing the back of the tank this eve. I have never seen her do this before. I assume she is just bored, so I tried stimulating her a bit by putting a mirror in front of her,popping a floating ball in the tank, talking to her lol, trying to play the chase the finger game (she is good at that one) and offering her a bit of food. The only thing that got her attention was the food. Everything else she looked at for a second and went back to pacing. I started my paintball co2 system tonight, after removing my DIY co2 system. Could this be affecting her? I am doing the system at around 1 bubble per second which is slightly more than what I was getting with the yeast system. anything else I could try to break her boredom / insanity?