I am looking to add 7 multifasciatus to two tanks. One tank is a 29g at home with 4 adult multi's (1.25"-2") already in it. The other tank is a 15g (I think) at the school where I work. The end result is trying to decide how to add them. Should I be worried about adding smaller (sub adult) multies to my established tank? Or should I just add them to the 15g and then take them once they grow? Or should I not worry about adding the 7 to the 29g?