crenchilia

I’ve heard a lot of mixed opinions on keeping multiple crenicichla together. I have a 150 gallon 24w 30tall and 48 wide. With: -Bumblebee oscar -Rosemarie pike -KK Blood parrot -Kelberi Peacock bass -Chocolate pleco I‘d like to add another crencichla. Would this result in more aggression? All...

not sure if I spelled it right sorry if I did, had a few questions about Regani pike saw them at one of my LFS a pair for 40$ I think is that a good price and are they aggressive? thanks