I have a guppy that has scales turning white across his back from his dorsal fin to tail and a little at his head. It's not ich and it's not saddle shaped or fuzzy. He does not act oddly or swim differantly than before I noticed it. I noticed it after a water change. The water was fine before the change-2 week wc- Stats-NH-0, NO2-0, NO3-20, pH-7.2, Temp- 82F. I use declor @ wc so no chlorine. Any thoughts?
Thanks.
Thanks.