Yesterday I bought a little orange betta and placed him in a 10gal tank that I had lying around. He seemed "normal" yesterday, swimming all over the tank, checking out his new pad. This morning I noticed that he was swimming back and forth along the glass while flaring. I tried covering the glass with paper, in hopes of it reducing the reflection, but it didn't seem to make a difference. He has been doing laps along the wall all day. I wanted to find out if you guys thought this is was a problem, and if you had any solutions. Since covering the walls with paper didn't work, I'm thinking about getting some fake plants to try to cover them with and seeing if that makes a difference. I have no problem with him keeping himself occupied, as long as its not causing him too much stress.