I had to go to Vancouver yesterday, could not avoid it, and when I got home Spots was sick again. Before we left, my daughter fed him, without realizing he was on light feedings. When I got home around 10pm, he seemed sick, more red veins,and the water was cloudy. I did a water change immediately and another one this morning, both with salt and maracyn2. He looked and acted so well but now, he's bottom sitting. What now? I'm worried.