Feather dusters can shed them when they are stressed. Hopefully they is whats wrong.
I did not notice many small hitchhiker featherdusters in my tank during my cycle. Now that my cycle finished and the tank is getting established I have a TON. I lost count at 30 on a 2lbs piece of rock. Most are very small but I figured a bunch of small ones will look pretty cool.
My 10 gallon is doing awesome. And everyone told me I could do it....I used tap water to start the tank and I still have no algea problems. My turbo snails actually died because there was nothing to eat...
38 gal SW
, 40lbs base rock, 5lbs live, emporer 280, bio-wheel 330,tronic heater, 2 O. clowns, 1 firefish.
29 gal FW
, boring...soon to be salt I think.
10 gal SW
, 20lbs LS
, 20lbs base rock, 1 unhappy domino damsel (he was in the 38...switched the percs and the damesel recently).