Hey guys. So how worried do I need to be with this "tumor"? It has gotten larger since I've had him. Sometimes he seems active and then sometimes I catch him at the bottom of the tank. One morning I thought he had passed away. I tapped the aquarium several, several times before he came out of his cave. Could he be getting some age on him??
Right now, as I'm typing this, he is all over the place -- then again I did change his settings around a little and tried a new baffle for his filter.
Adequate water changes, +/- kids getting sick or a very hectic day.