My fish died today. I don't know what happened it's so upsetting, it's not like I loved this fish but I don't like to see thing suffer. What concerns me the most is the reasons. My Nitrates are 0 my ammonia is 0 my PH
is 8.4 everything else looks really good. Other fish is swimming around being stupid begging for food. She just started to swim in circles and she was a goner. I put her in quarantine when I saw that she was going to die, I didn't want her to die in the main tank. I hope this is not a sign of bad things to come.