Ok so I got my crowntail betta about 4 hours ago, and I settled him into his new 1 gallon. I thought that moving onto something with more room than he had ever been in might promote him to swim around, but he is just kind of floating there and i dropped a pellet of food in and he wasn't interested. He poked his nose around the top, but he was inches away from the pellet, like he wanted it but was having trouble finding it, and now he's just kinda stayong suspended in the middle of the tank. He looked like the healthiest one at the store, what should I do?