Aggressive lawnmower blenny

[gobyloverrr]

my lawnmower blenny is aggressive with all of my fish except clownfish. And I just introduced a new yellow clown goby he’s a baby. And he began to be aggressive towards it immediately we introduced it. I don’t know what to do why is he so aggressive. Has anyone had the same experience. Should I put him in a seperate tank. I don’t understand why he’s aggressive with all my fish.

 

[EgotisticObeseChihuahua]

Maybe he is battling for algae availability/ lack of food. If there is a algae shortage then sometimes tangs will become more aggressive or if a fish is not being fed enough. You could try using a mirror on the side of the tank. Much like some people do to deal with tang aggression.