Just remember, the big bright red serpent, Ophioderma squamosissimum, is one of the most delicate serpentstars in the hobby. Once established they are pretty tough, but be sure they are acclimated for a very long time (many, many hours). They are considered rare by scientists (funny that really, considering how common they are in this hobby), so they should be kept in mature tanks with pristine water conditions. Also not a bad idea to feed them, and not simply leave them to scavenge.