hello im new to he site so im not sure if theres already a forum like this i couldnt find it so sorry in advance if there is one, but i wanna know ehat the most aggressive meanist freshwater fish is. and i mean like which one will eat the other if both in a tank togeather, when i first started fish keping i learned that rhom piranhas will eat oscars, red bellys, and wolf fish, so i figured that rhoms were the meanist than i lean about snake heads and mbu puffers and nile puffers, but afr seeing videos i realize that puffers are footballs and not really mobile or fast so i really want to know what actual owners of these monster fish think? whats the baddest fish 
