Zoanthids are fantastic beginner’s corals (See: Beginners Guide to Keeping Corals), being characteristically hardy and resilient. In addition to that, Zoanthids are found in a bewildering array of colours and look fantastic under actinic lighting. Due to their small size, zoanthids are ideal for smaller and nano systems.
The small polyps grow in a densely packed ‘mat’ that will quickly, without any additional feeding, cover rockwork in most tanks. For this reason, many people grow each colony on an isolated piece of rock and place it on the substrate to stop it spreading over adjacent rockwork and overgrowing other corals. Many aquarists do not feed their zoanthids but many will take small items of food if offered. These corals prefer moderate to high lighting and moderate water flow.
Something worth noting about zoanthids is that they produce a substance called palytoxin. This chemical, present to deter attack from hungry fish and foraging inverts, can be dangerous to humans. The prevailing advice would be that anyone handling zoanthids should ensure they don’t allow the corals’ mucous that contains the neurotoxin, to touch broken skin. Thoroughly wash your hands after handling these corals.