I do about a 15-20% water change a week and now they aren't doing it! I moved the tank around and they are paying no attention to the water and bubbles flowing in. I added more caves and plants and they are loving it. So I really don't know what it was about. I am going to add a air stone just in case, but everything seems to be normal again.
My convicts swim around with them and will sit in the caves with the others, there isn't any aggression between them at all. I guess it all really depends on their personality and I know convicts are known to have a bad temperaments. I mean it could all change as they get older but maybe not since they have been with them since they were little babies. I was being positive and tried my jack dempsy with them but he kept pushing water at them with his tail and charging them, so he will have to stay by himself.