Oh man. My first ever fish is gone. Came hime to a dead Blotchy. Just picked him up about a month or so ago. Last night he was looking good and eating. All my other fish are fine. No clue what happened. Temp did go from 78- to 80 but dont really think its that drastic. Wonder what happened.
It could be any number of things unfortunately. Without any symptoms to go off of, it would be next to impossible to give you any ideas.

