It was 75 but I changed my sand to play sand so I’m not sure atm. They were all eating and swimming well, but out of nowhere Started to isolate themselves and then swimming awkwardly->getting skinny->not eating->death
He’s been with with me for a few months (at least 3)
The back spots started on the dorsal fin then the tail. Once developed they stay..at least so far.
Nothing new has been added besides dechlorinate water.