I have a 375 Gal. tank that I am currently setting up and would like to possible have Africans in it. Currently I have eight Angel's in a 120 Gal. which get along great. In a 75 Gal hex I have Peacocks and yellow lab's--There used to be eight, now there are four,(A lot of killing went on!). I know the foot print on the hex is not conducive to hold many Africans. I have had aquariums for over 40 years, but never Africans. I love to watch the fish thrive in an aquarium--NOT FIGHT!If I did go with Africans in the 375 Tank, I would want to have the fish to be no larger than 4-5" and get along--Possible no more than 30 to 40 fish. Is this possible with Africans and if so what type should I go with?