于 2008-08-29 22:42 I think they will fight if put together , they're not the same type of fish ... so I will buy the bigger aquarium ..may be double size of this one ! Then seperate them again ......
Actually,, the small one is more strong than the Bigger one , if he's going bigger , i think he can kill the Pacu. His teeth like a cutter really when he's killing the small fishes...