I picked up a new friend tonight. I had been preparing a new tank over the last few weeks for goldfish. Yesterday, someone posted in a local aquarium facebook group about a black moor they were looking to give a new home. I picked him up tonight. The previous owners named him Midas. Apparently, they had been keeping him in a 3 gallon tank for about a year. After I got him home and in the tank, I was able to get a good look at him. It looks like the gill cover on his one side is severely beat up. He's also pretty small for a year old goldfish, but that's to be expected given his previous living conditions. I gave him some of a pea tonight and the plan is to get him on a solid diet of sinking pellets and veggies. There'll be lots of water changes until that injury clears up. Any other recommendations?