Tank 120, we have two very large goldfish in a 40 gal
tank and one has this horrible growth on her side...Im sure it is going to kill her but she's survived 5 years so far...is there any way to remove the growth?...rubber band it? so to speak, without freaking the heck out of her? Tank is healthy, ph, amonia, etc. Other fish is also over 7" and totally healthy, no other fish in the tank. What can be done to stop the growth?if anything.