We have had a Betta fish for 5 weeks and it has seemed fine until the last few days. A simplistic description is depression. The only recent change was adding glass beads to the bottom of the bowl and a plastic tree. All suggestions are welcome? Tnx! I recently had shifted my betta fish from a small bowl to a large tank. From then it has stopped eating, now it doesn't swim either. It has been ten days. What should I do?