u/Aggressive-Pilot-302

I’ve been watching my boy Onyx for a few days now because I thought he seemed off and now realized he’s started to pinecone a little. So I have a hospital tank getting set up for him with salt, tannins, and other things to try and help. I was wondering if there is anymore information people can give me to help him get better? He also has this white spot under his face on this right side that I’m not sure if it’s an infection or not but I’ve been trying to treat that for about a day now. I need to leave my mom a list of things to do due to me leaving for a 2 month trip (horrible timing I know) but I’m glad I caught it now rather than later or come back to a dead fish. So any information would really help!!