Hey folks! First post here. Just wanted ya'lls opinion on my fish and setup. I bought Ozymandias 3 days ago from Petsmart. He's in a gallon aquarium with a heater keeping everything at about 76-78. Water gets changed 50% everyday and sits for 24 hours prior to him swimming in it (plus it gets hit with a dechlorinator/conditioner) I was happy to see his first bubble nest today, and he exhibits curiosity towards people passing by his bowl. But he seems to just be picking at his food and has developed a small pinhole in his tail. I don't know if I accidentally tore his fin when taking him out of his tank to clean the water or if maybe it's fin rot? He seemed to be healthy in the store. Flares when presented with a mirror, but seems to be a little lethargic in general. I feel like a parent with a newborn, obsessing over every sneeze and hiccup! Thanks for your responses.