So crazy meant to be story here. After spending my last dollar on Christmas eve for Christmas I got on my Facebook page to post something and I accidentally clicked on marketplace and as I was going to exit a post caught my eye bc it was an aquarium that said it was free. I clicked on it to see what it was and it was one of those small Marine betta EZ care aquarium. The water was so dirty and they tank was so small that I immediately messaged n said I would take it. I had to wait til Christmas night and drove an hour to pick him up and the tank smelled so bad that I could hardly stand it and I couldn't even tell what condition the fish was in bc it is hard to see thru. Anyway. I was unable to drive home but luckily they gave me their water conditioner so I immediately got his water changed but I had nothing else with me, and all stores were closed bc of Christmas. I didn't think he was going to make it thru the night. His tail is shriveled and torn and I am thinking it's possibly fin rot but that's just from researching a bit. Not sure what else if anything is wrong. I got my stuff with me finally to help him out but I have only had one betta when I first started with aquariums. I put an airstone in now and he really perked up a bit for that. Pretty sure he's never been around one. Kind of spooked him. He's liven up though. Anyway I have aquarium salt in a holding cup ready to either put him in for a certain amount of time or I can dump it in the tank I am transferring him too. What are your suggestions?? I can't get a clear picture of him now bc of the tank he is in but can once I get him over to a different one for treatments. Any and all advice is welcomed! Thank you!