I purchased a few leaves of live rock in January and after purchase noticed there were mini feather dusters growing all over them. Now all of a sudden they have started growing over the place. There are some growing in the sand, on rock, and even on one of my turbo snails!! I'm not sure if this is anything out of the ordinary but I just noticed this the other day. Has anything like this happened to anyone? Will the feather duster growing on my turbo harm it in some way? Also what type of feather dusters are these?
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