Thanks for all the great comments, and I knew everyone will tell me that I need a bigger tank to support them all =) I realize that before I posted! I was planning on a 180 Gallon! BUT i might have to go for something even bigger!
The juvenile oscars are all seperated at the moment in 20's 30's and 33's! They aren't getting aggressive! but they do need better water conditions! With keeping most of them in one 75gallon was HELL! and quite brutal with water changes!
But one thing for sure, my problem are the two Giant Gouramis, they are the reason why I started keeping giants, and if people wonder their growth rate, they came home about 2-3 inches, and are now 6-7inches in two months! They are getting aggressive only towards each other! if I got plants in there, neither will get injured, when I have too little plants in there, they will basically kill each other! will they still be the same as they grow? Can anyone answer that?
Anyways, thanks for everyone's comments and concern, glad you aren't those bad LFS that just watch fish die and just leave em in the tank and not fish em out for over a week! =(