@Colu I don't yet have a water test kit so i don't know the water parameters . He has it from second or third day i brought him .. i brought him on 3 nov 2021 . He looks completely healthy like he interacts with me whenever i am near the tank and forages and swims actively and sleeps well at night . I don't have more than $ 26.89 , i am saving money for his 40 gallon tank and supplies also i don't have a filter . no i haven't added anything new to the tank . Yes he is eating ok , i feed him fried bloodworms , flakes, pellets, peas etc...he swims to me whenever it is his feeding time and sometimes i feed him by hand. As i don't have a filter i net his poop every Morning and evening and i do i major water change every week .
Please see his gills in the photo