JMB
Aquarium Advice Apprentice
I put a new blue tang in my tank 7 days ago. The first day he swam around a little but frequently retreated to the rocks when my sailfin tang (who thinks he owns the tank) harassed him. Since then the blue tang stays almost exclusively hidden in the rocks, it come out just a few inches every now and then. While in the rocks he usually is positioned head down with his tail toward the top (almost verticle). It still looks completely healthy but I have never seen it eat at all. The sailfin does not seem to be paying any attention to the newby and is not chasing it back when it does venture out. Any thoughts?