My tank looks peaceful in the pics but sometimes its like world war 3 in the tank
im very luck my NGT is like the police to much fighting and he sorts it out
i used to think the NGT was causeing the problems so i removed him after 2hrs all hell broke out as they tryed to sort out a new alpha
the NGT is fine on his own not aggressive at all but he wont take any crap form other tigers even if they are bigger
you need to let them fight it out once they have sorted out whos boss then it will carm down