i have three clown loaches that ive had for a little overthree months now and everything has been fine with them up til now. two of themhave changed colors and are fighting. i dont know why they are doing it andwhat i should do. i dont know if i should separate them or just let them workit out. they are 2-3" each and i just dont want to see them get hurt orstressed too much. any help is appreciated thanks