Hey Aaron! Those tow are from the family of Gorgonidae, Plexaurella sp.
It is a Caribeean sea whip that does well in the invertebrate aquarium.
Fedding
Polyps are often large enough to capture brine nauplii, rotifers, sieved
daphnia and cyclopods. Dead foods and liquids are usually regected.
Feed sparringly once or twice a week when polyps aren full extended.
Some species are self-sustaining in the aquarium and under intense lig
htning will survive purely on their symboitic algae.
Health
Bacterial infections mean that the coenenchyme covering
becomes discolored, often balckening, and finally disintegrating,
leaving the horny skeleton. The causes of this Stripping include
physical damage, poor water conditions, insufficien water circulation
and even a build-up of filamentous algae among the branches. Under
optimum conditions regeneration is possible.