Originally Posted by
Keri
http:///forum/post/2869000
the second dots are spirorbid worms (sp?) harmless filterfeeders
+1 i just found out what those recently were too. I found this on the new about them.
Spirorbidae
These worms are virtually harmless. These animals brood their larvae in either the operculum itself, or within the tube until ready to metamorphose, and then release very short-lived planktonic larvae. These larvae often settle within minutes (and almost always less than an hour) of their release, and can therefore spread rapidly within a reef aquarium. This generally happens early in the life of the aquarium, and in a well-maintained, clean aquarium, the initial population explosion of these small worms quickly slows and they are almost never a problem in any aquarium. If the population continues to climb to the point that all surfaces in the tank become encrusted with these worms, it likely indicates a high suspended organic problem, and you should be more concerned with your water quality than the presence of these polychaetes.
