Hammer help?

czwannabe

New member
I've had these hammers for 4 years and some of the frags started to do really bad and are melting. White film on them, any tips on how to save them? I was working on selling a bunch of frags so they were in sand bed for a while. The tank is 20 gallons and currently being upgraded to a 90 gal. Which is cycling. Water parameters look great. I did 2-5 gallon wc's 12 hours apart.
I also broke the good heads away from the melting ones to try and isolate the problem. The last pic is before the problem.

<a href="http://s1078.photobucket.com/user/Ben_Barnhart/media/27064822-DA58-4F83-8A3A-07B93F49EF55_zps1obwpodp.jpg.html" target="_blank"><img src="http://i1078.photobucket.com/albums/w489/Ben_Barnhart/27064822-DA58-4F83-8A3A-07B93F49EF55_zps1obwpodp.jpg" border="0" alt=" photo 27064822-DA58-4F83-8A3A-07B93F49EF55_zps1obwpodp.jpg"></a> <a href="http://s1078.photobucket.com/user/Ben_Barnhart/media/474C4426-D41C-44A8-9F5E-DCBEC0B1A1DB_zpseahpxzfp.jpg.html" target="_blank"><img src="http://i1078.photobucket.com/albums/w489/Ben_Barnhart/474C4426-D41C-44A8-9F5E-DCBEC0B1A1DB_zpseahpxzfp.jpg" border="0" alt=" photo 474C4426-D41C-44A8-9F5E-DCBEC0B1A1DB_zpseahpxzfp.jpg"></a>
 
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