Hi.
Week three of the display tank start-up. Things are going well, knocked out a few aiptasia, got some nice fan worms thingys, but a bit puzzled about this. I’ve looked through the sticky and can’t see anything that matches. It’s underneath a rock arch, very much in the shade. Anyone any ideas?
Seems to have 3 large, one small arm. Doesn’t move much. Bristlestar touched it and nothing happened.
Thanks.
![IMG_2919.jpeg IMG_2919.jpeg](https://www.reef2reef.com/data/attachments/3597/3597133-9d04eeb9e0c4ad9c9e1feb8d53980bdc.jpg)
Week three of the display tank start-up. Things are going well, knocked out a few aiptasia, got some nice fan worms thingys, but a bit puzzled about this. I’ve looked through the sticky and can’t see anything that matches. It’s underneath a rock arch, very much in the shade. Anyone any ideas?
Seems to have 3 large, one small arm. Doesn’t move much. Bristlestar touched it and nothing happened.
Thanks.
![IMG_2919.jpeg IMG_2919.jpeg](https://www.reef2reef.com/data/attachments/3597/3597133-9d04eeb9e0c4ad9c9e1feb8d53980bdc.jpg)