Christmas Tree Coral Help Me please.

Hello,
I just started my tank about half a year ago, since then it seems to be
going very well. All of the sudden Three of my eight christmas tree
worms in the coral have half turned to bone (their nose/green peg
thing) the bone is kinda in the shape of a crown, they are still alive
but I feel terrible about their condition, and am not sure what to do.
I also don't know what caused the mess, the only things I have done out
of the ordinary a

(4 days before problem) Moved the rock form the top of my tank to the
bottom (55-gal, long).

(1 day before problem) Fed everyone a bit more then normal, and gave
everyone blood worms and some invert/coral food mixed in, rather than
the usual diet of that Photoplangton (or something like that) Gourmet
Fish Food stuff.

Please if anyone knows what I could do I would be very grateful, I feel
horrible about their condition, and would do what ever it takes to save
the 2 1/2 bone worms and stop it from happening to all the others (The
process has started happening to 2 others, by this I mean there
green/algae/noses have greatly thinned, originally looking like large
green cylinders now looking a lot less hardy).

Well, if anyone has any suggestions on saving these little guys I would
love if yo could either post or email me your suggestions
).


--
huminahumina

Thanks,
Loosh
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