I'm really worried about poor little Alvin. He was fine this afternoon. Yesterday I bought him his first live plants. I got two small java ferns and an Anubias. I also gave his tank a good 80% water change with a through scrub of the substrate.
Yesterday he was perfectly fine. I just got home from dinner with friends, and he's anxiously swimming at the top of his tank, seemingly unable to swim down. When he rests, his body tips sideways just slightly. He keeps hiding just beneath his filter. His stomach also looks slightly bloated.
Here are his stats.
Tank: 2.5 gal minibow, heated, filtered, cycled. He's the only fish with two small java ferns and an anubias.
Feeding: Aqueon betta pellets, frozen brine shrimp. Today was his fasting day.
Water: 82 degrees, no ammonia present, I don't have any testing supplies for nitrite or nitrate. I don't think the cycle is broken.
Any ideas on what to do for the poor little guy? I'm really worried about him.