Sugestions

[Drs1685]

So I came home today to something new, my porcupine in my 150 gal was nowhere to be found and I finally see him hiding in the live rock with his tail curled something he's never done before, so I reach in to get him out of the rocks to see if there's something wrong, he comes out and is scared and immediately my blue tang comes over and starts nipping his tail chasing him around the tank, they have been in the tank both about 3 months now and everythings been fine, anyone know why this would happen now and what I can do?

 

[melosu58]

Tangs do come with an attitude. I know I have three of them. They are trying to establish a pecking order but I would not let it go on long. Keep an eye out.