for a 125 g tank, i think you need a bigger solo fish than elongatus
but since you like the black mask elongatus, you should go for it.
it is also a very aggressive fish,
but they grow not so big, 8-10 inches.
but since you like the black mask elongatus, you should go for it.
it is also a very aggressive fish,
but they grow not so big, 8-10 inches.