We have a large +12-16" diameter green brittle star in our 210 gal tank along with corals, skunk cleaner shrimp, 2 clowns, 3 different tangs, and a blennie. Everyone getting along fine. I brought in a long spine sea urchin and he seems to be bothering the brittle star. I pulled the brittle star out and put him in the sump when I found him pressed against the glass with the sea urchin beside him. Could the urchin be trying to kill him? Should I just put the brittle star back and see how it goes? They have been in this tank for about 2 months together now and the brittle star keeps moving to new hiding places. I hate to get rid of either of them but it was sad seeing the brittle star smushed against the tank glass.
Thanks for any insight on what is going on here.
Thanks for any insight on what is going on here.
