This is a general hint!
Isozoanthus primnoidus has a harmful toxin.
As a rule, animals with a harmful poison do not pose any danger in normal Aquarieaner everyday life. Read the following husbandry information and comments from aquarists who already keep Isozoanthus primnoidus in their aquarium to get a better picture about the possible danger. However, please be careful when using Isozoanthus primnoidus. Every human reacts differently to poisons.
If you suspect that you have come into contact with the poison, please contact your doctor or the poison emergency call.
The phone number of the poison emergency call can be found here:
Overview Worldwide: eapcct.org
Translated with www.DeepL.com/Translator
Carreiro-Silva, Braga-Henriques, Sampaio, de Matos, Porteiro & Ocana, 2010
https://www.researchgate.net/publication/249284283 / ICES Journal of Marine Science (2011), 68(2), 408–415. doi:10.1093/icesjms/fsq073
Isozoanthus primnoidus, a new species of zoanthid (Cnidaria: Zoantharia) associated with the gorgonian Callogorgia verticillata (Cnidaria: Alcyonacea)
Authors: Carreiro-Silva, Braga-Henriques, Sampaio, de Matos, Porteiro & Ocana