Hey guys, my little buddy Blue Raspberry isn't doing very well. He's four years old and rainbow. I switched to a different conditioner for his water because they discontinued his old kind. So I used the new kind and he took a turn for the worst. He goes to the top of the bowl and swims with his back extremely arched as if gasping. Then he floats to the bottom and doesn't move. He hasn't eaten in three days and I'm really worried. He's in a but bowl with rocks. He seems like he has no energy at all. Please help.