These particular palys are either brown with green mouths, or teal with green mouths. Palythoas & Zoanthids, or corallimorphs that belong to the Order Zoantharia (Abyssoanthidae (Abyssoanthus) Epizoanthidae (Epizoanthus) Hydrozoanthidae (Hydrozoanthus and Terrazoanthus) Neozoanthidae (Neozoanthus) Parazoanthidae (Antipathozoanthus, Corallizoanthus, Isozoanthus, Mesozoanthus, Parazoanthus, and Savalia) Sphenopidae (Palythoa, and Sphenopus) Zoanthidae (Acrozoanthus, Isaurus, and Zoanthus)) are quite hardy little corallimorphs. These animals can be found all over the reef--from reef slope to lagoons. These animals require minimal conditions; moderate illumination, and minimal water flow. These polyps are most certainly for all: beginning and seasoned aquarists.