uno_mas
New member
I just started noticing the erosion on the fins yesterday and seems to be going downhill pretty fast. hopefully you can see in the picture the discoloration on his back toward the tail. if anyone can help with what this may be and what can be done to help i would appreciate it. he is in a 150g display, everyone else seems to be doing fine. i have had him for over a year and never had any other issues. your help is greatly appreciated