Do I have too many fish in my 75 gallon?

I have 2 tiger oscars, 2 albino oscars, 1 red oscar, 2 african cichlids, an iridescent shark, and a spotted Raphael Catfish in my 75 gallon tank.. all fish are babies and under or about 3 inches right now do you think i need a new tank immediately to split them up, or can i wait a couple of months until they are bigger and some of them are maybe killed off?