so 2 days ago i got a hawaiian feather duster at the fish store. I put it in the tank and it has shed its tube and crawled behind my rockwork. I haven’t seen it since. Is this normal? Is it building a new tube back there?
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I’m not sure what the lfs’s parameters are, but ill check mine laterI am with @John3 on this, not a good sign. What are you parameters compared to the LFS, probably due to stress for one environment to another.

