Hi, I have some cuttle eggs . I've had them since 3/1/09....since then most have swollen...about a week ago or so I tried to look throught them with a bright light and could not see through them.. Since then they seem to be sloughing the outer layer of the egg off..is this normal? now I can see throught them in front of a 400watt bulb....I can see something small in there....I don't think its moving.....should it be moving around at this point? Or is it to early still......I don't have a heater in my 100gal tank which these are inside of in a picture frame breeder.....so sometimes it runs a bit cool So are these still good?....I work on some pic..