Hey guys, new to the forums and the site. I have a 150 gallon tank at home with some stray fish (friends couldn't keep them so I opted to take them)-5 star general and jack dempsey (they seemed to have paired), texas cichlid (dominant) and another more docile cichlid that I haven't been able to determine what it is (those 2 paired), and finally a green terror. The texas cichlid was once the smallest and has now become the alpha in the tank. Any suggestions on whether i should add more cichlids and what type?