in a 6' long, 2' tall, 3' wide tank, can i put 4 blood parrots, 2 convicts, 2 pink convicts, gold severum, green severum, turquoise severum, 4 red hook silver dollars, electric blue jack dempsey, 4 pictus cats, blue-eyed red bruno pleco. if so is there anything else i can put in there, maybe a firemouth or something. i plan on getting the cichlids all female if possible. any suggestions are welcome.