feather duster blew its top

[TheRealBigAL]

I think the feather duster sheds its crown only when it feels life is in danger. By shedding the crown it would prevent the entire worm from being eaten or killed in the event of an attack. I don't think starvation was the cause for loss of crown because the duster uses that to collect food from the water. Spot feeding it with phyto is good. I had many feather dusters in my old tank and I fed them coral frenzy and phyto having great success. Feed it well and the crown should grow back in 3-4 weeks.