I just added a new 2” blue hippo tang to the general population, which includes a 3” Watanabe Angel, who started showing some pretty fierce aggression to the new addition. After breaking it up a couple of times with a gentle tap on the glass, and placing a mirror, now I see the blue hippo defending itself! I was super happy to see that, as well as the fish swimming in open water quite a bit. I certainly didn’t expect that and thought it would go straight to a cave and call it a night.
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