I want to get some firemouths and convicts for my 55 gallon. I was going to get two female cons and two firemouths. Will the cons be too agressive for the firemouths? can one firemouth do well with two cons? I have a 120 gallon mixed south american tank with a gt, jd, jag and serevum they do very well together. any suggestions would be great. would it be better to not pair them up?