Hi everyone, I'm looking for advice about my eartheater. He's usually a very active fish and has recently taken to resting on the bottom of the tank. I've done a water change and this hasn't made him any better. He also has recently had hole in the head which I have treated and has cleared up physically. He seems to also have a small white growth on the side of his mouth (picture below) Any advice would be brill as he a big feature in the tank and I've had him a while. Thanks 
