I began pulling the driftwood and plants out of my tank today to clean the bottom and do a water change after an outbreak of fungus had finally cleared. As I did so, I realized my largest IT was swimming around on his side, almost as if he was glued to the substrate. He's 8 inches, an expensive fish, and i really don't wanna lose him. Anyone have any idea? The water parameters all check out and are at their normal levels. The temperature of the water is around 80-82.