I know everybody always asks this question, and there is no definite answer, but I would like some poeple's opinions on the meanest most aggressive fish that travles in a shoal and is not just motivated by hunger to be aggressive---Between Fresh or Salt Water----I've been told the Caribe Piranha, any opinions on that or suggestions to a different type of fish?
---The most non-boring species that fits the above requirements, and unique color wouldn't hurt either
----Or any methods on how to get a type of fish very aggressive besides starving it or making it protect its nest after mating?
---The most non-boring species that fits the above requirements, and unique color wouldn't hurt either
----Or any methods on how to get a type of fish very aggressive besides starving it or making it protect its nest after mating?