Hello, all. I'm new to the forum - new to axies, actually. My girl, who I brought home just yesterday, has been spending more and more time at the top of her tank until she finally stopped dropping down to the bottom at all. I put her in a small container in the fridge this morning with enough water to cover her. She was fine when I got her home; she explored her new tank and hung out at the bottom for a few hours before we started noticing that she was hovering near the top of the tank for a few minutes at a time. I tested the water and everything was fine - zero ammonia, zero nitrites, pH 7.5, water temp 17C. I did a 50% water change anyway, since it's a new tank and I hadn't had a chance to cycle it, but this only alleviated the floating problem for about half an hour. The tank is 10 gallons with a Fluval 1 internal filter and sand at the bottom. My axie is around four months old. She did eat a couple of pieces of salamander pellet when she first arrived, but she spit them both back out and hasn't eaten again. She was in a small tank with pea-sized gravel when I got her, so I'm afraid she may have ingested that before I got her in the new tank. For now, she'll stay in the fridge for at least a day. I'll do a 100% water change with chilled water (already in a bottle in the fridge) later day and keep an eye on the temperature in there. Is there anything else I can do? This axie is replacing another one that died the day after I brought him home, and I'm so afraid of it happening all over again. Any suggestions?