Saltcorner
By Bob Goemans
By Bob Goemans
Likely Reef Tank Suitable
Likely Fish-Only Tank Suitable
These non-photosynthetic corals in the Order Pennatulacea are commonly called Sea Pens. They are cylinder-shaped filter feeders that can dig its lower portion into substrate and stand erect. Some specimens emit waves of bluish-green light at night to ward off predators. Most are light tan, but some orange and off-yellow specimens are seen from time-to-time.
