If you want a wet pet like an Oscar, jds don't fit the bill. Most have really dull personalities. Oscars get too big for a 55. Period. Even females. You could be ok for about a year. Thats about it.
If it were me I'd get a pair of Honduran red points. They are more colorful than convicts, stay a little smaller, so they will be very happy in a 55, and you will have a tank that has a much more natural feel. Trust me of you cram a 14" fish in a 13" wide tank, neither you or the fish will be happy. If you get a fish that stays under 8" you will be much better off! Go out and research and come back with what you like and we will help you out!
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