My female betta, Ellie, has been chased by another female today (first time I have seen any fight) and I removed the female who was causing it and put her in a bag and she's on the side of the tank so Ellie can rest. She's laying on the bottom underneath the bridge in the tank. I only saw her eat scraps from the other females this morning but this is the first time I have seen her lying down for any long period of time. What could be wrong? She has vertical stripes that often appear and I was wondering if that could be stress? The temp is fine.