clown aggression

Hello my friends,

I added two clowns into my FOWLR about one month ago. The fish already in the tank are a six line wrasse, two damsels, and lawnmower blenny. For the entire last month all fish got along just fine, no aggression, no anything.

For some reason today I noticed both clowns, going after my blue damsel! The damsel would swim across the tank and the clowns would fly after him. Again, neither of these fish have ever exhibited any sort of aggression towards the other fish in the tank...

Any ideas on what sparked this all of the sudden war?
thanks in advance!

 

Mine will do that also when the other fish enter their territory. the clowns are in the damsel family and can be aggressive.

 

typical of damsels IME.

How big is the tank? might be a space issue with all those territorial fish.

 

55 gal...the issue that freaked me out was everyone got along fine for the first month

 

Maybe it took them that long to find a territory, and they are just now starting to protect it?

 

True Dat