Overly Aggressive Perculas?

[Mooners]

Clowns are extremely aggressive fish. Not the kind little nemo most people fall in love with

+1 mine were extremely aggressive towards everything when they were first in there. but after i got them an anemone they kinda settled down. not to hijack this thread but does anyone know why they shake at eachother?

 

[BIGgourami]

Territorial display, pretty much all damsels do it.

 

[shua71]

Hey I've heard marrons are aggressive...but are they only aggressive to thier own kind? I have one for many months who is very friendly, never puts up a fight with anything...but will kill a clown...actually did kill a percula clown.

All clownfish will be aggressive to their own kind unless they're a mated pair. You should research how they switch sexes and such so you won't make the same mistake again

+1 mine were extremely aggressive towards everything when they were first in there. but after i got them an anemone they kinda settled down. not to hijack this thread but does anyone know why they shake at eachother?

Pretty much their way of showing submissiveness.