I've had a RTS for almost a year now, first he started off in a 10 gallon tank and then moved to a 20 gallon tank. In the ten gallon tank he had friends and they got along. In the 20 gallon tank we initially had him alone but then my boyfriend wanted to get him friends so he bought 2 convict cichlids and a jack dempsey cichlid. Ever since we got them he has started to look horrible. They live with me so I notice all the small changes but my boyfriend says I'm just being paranoid.Recently though my RTS has been getting even worse, I don't know if it's cause of the cichlids or because he really is sick.