Aunts getting a new tank.suggestions?

there are alot of african cichlids that are only small around 4-6 inches i personally have about 20 africans in a 100 gallon tank and they look great but you could scale this down a little but you can have a lot more africans cause they like to be a bit crowded cause they are a schooling fish check out cichlid-forum.com/articles/african_cichl… there are some really cool fish here most are readilly available all info will be there