My betta boy Jaws is not happy. He lays on the gravel behind plants or right next to the intake of the filter on the gravel. He eats and swims to the surface every once in a while. But he's just not as active as he use to be. I think he's unhappy. He looks fine physically. 10G tank parameters: pH = 8.2 (my usual) Ammonia = 0 Nitrite = 0 Nitrate = 30 (my normal) Temp = 76 F Tank mates: 6 Neon Tetras 4 Endlers - male 2 Purple Mystery Snails 10 Red Cherry Shrimp So what do I need to do to have my happy betta boy back?