im upgrading from my 26g to a 50g, which will be housing all the 26g tennants, plus a few more fish. i was wondering how many smaller species of bichirs would be a good amount for the 50g. the tank will be 36"-18"-18" and i already have 2 senegals and a 1" ST dat. i was thinking maybe my 2 sens, 1 del, 1 weeksi, my ST and another ST or indo? any advice is appreciated.