Zoanthids are one of the fastest-growing species of coral, but keeping your zoanthids happy and healthy on all fronts is the best way to promote their growth for years to come.

How fast do zoas grow?

Depends on the zoas I think. Most of mine grow at about a polyp every few weeks. However, I have a colony that is not invasive by nature but is growing about 1 polyp a day!

How do I get my zoas to spread?

Open your eyes and see that Life is Beautiful.... Yes, you can definitely frag the zoas (with the razor blade) and glue them to a piece of rock and it will spread in no time.