Here is how I would take the steps to ID it.
Coral ID basics (based on my opinion):
Did it come with a show name with legitimate lineage? > Yes. Then you already have an ID. > No. Then find the species name.
Can't find the species but close to it? > Display confer as "Genus cf. species", example "Acropora cf. millepora".
Do not know how to find species or its too small? > Choose the color followed by Genus, example "Red Acropora".
Color blind? > Name after everyday object followed by "thingy", example "twig thingy".