I have a 150 and want to make it into a CA/SA tank. I have one midas, one carpintis, one little red hump eartheater, and two little salvinis. All are about 2" right now. The carpintis is about 4-5". I was thinking about adding another couple little texas, jaguars, or buttis. I really like the buttis, but how long before they would start messing w/ the other fish? I know that they get mean, but dont know how long before they do. They would be the same size, about 2" also...