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It is most likely an epitoke, which are how many worm species spawn. The worm either fully changes or creates a segment that breaks off and is...
Sounds like hermit crabs. Any chance of some photos? Chuck
Here ya go: http://www.3reef.com/forums/id/i-d-library-if-you-have-good-photos-we-can-use-please-submit-60769.html And since I'm not going to...
It is what is commonly called a "swarmer", which is the reproductive phase used by many polychaete species. Yours appears to be a Syllidae spp that...
It might be a gall crab, hard to say without much closer, detailed photos. Chuck
Yes, it is a possibility if the starfish is able to hang onto the fish which normaly doesn't happen with healthy fish with one exception, the...
Looks to be a Stomatella species, harmless algae grazers. A Hitch Hikers Guide to the Reefs Chuck
Could be hydroids as well. Chuck
Sounds like a Convolutriloba flatworm, which spread very quickly but can be siphoned out during water changes and in due time they should dissapear....
Much better photo and I now have to change my answer to it being a Priapulida (aka, cactus worm). Also harmless. Chuck
They would have to come out of their shells partialy in order for the male to transfer his spermatophore to the female. Chuck
It appears to be a Sipunculida spp. (aka-peanut worm) and is quite harmless as it is a detrivore and a beneficial member of any clean up crew. A...
They breed by the female carrying her clutch of eggs attached to her pleopods and as the eggs hatch, she casts them into the water for them to begin...
Yes, they both appear to be species within the Acropora genus and that will be about the best you can do per an ID as it is impossible to do such an...
Thanks, but going through it now after having not done so in quite some time, it appears I need to fix/delete a few of the links. Chuck
A little collection of links and personal photos in the hopes of saving some search time. Coral Diseases and Parasites Chuck
While a few other groups come to mind, I would have to agree with it being a Cyphastrea spp. due to the spacing of the corallites. Chuck
A section taken from the above photo: [IMG] A section taken from a known Psammocora profundacella : [IMG] Its an all too common mistake...
Psammocora Coral Genus Identification Chuck
Hard to see details as you noted, but I would imagine they are either colonial tunicates or a sponge spp. Probably tunicates. Chuck
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