Hi everyone, I'm knew here and I need some advice. Would I be able to keep a pair of Loisellei's with a Cobra Pike in a 120 gallon aquarium along with a 9" striped raphael catfish and a synodontis? I really don't want my tank to be overcrowded and I would like to keep aggression down to a minimum. I know it might be stretching It, but I am also looking into a smaller cichlid that grow to be 8 to 10 inches. Some of my choices are a severum, Jack dempsey, or a pearlscale cichlid. Would any of these be able two work in my tank along with the loisellei's and pike?