[5] Its coloration is bright orange, with a white stripe on the dorsal ridge from the superior lip, passing between the eyes and ending at the caudal fin base.

[3][4] A. sandaracinos typically lives in small groups on outer reef slopes or in lagoons at a maximal depth of 20 metres (66 ft).

[9] In 2011 3 individuals of A. sandaracinos and a pair of A. clarkii were observed to coexist within one host anemone of Stichodactyla mertensii.

[10] Like all anemonefish, A. sandaracinos is omnivorous and its diet is based on zooplankton, small benthic crustaceans and algaes.

Like corals, anemone's contain intracellular endosymbionts, zooxanthellae, and can suffer from bleaching due to triggers such as increased water temperature or acidification.