KurtG wrote:

Another Newbie Question: Are copepods the tiny white barnacle looking
things that coat the rocks, etc? (That's what the guy that I bought the
tank from told me.)

Then I'm looking at this:

http://www.reed-mariculture.com/copepod/

And, they appear to be a free floating insect like creatures.

Reason I ask is that my Mandarin Dragonnet isn't looking very good. (It
was also beaten up by a damsil). As far as I can tell, all the white
crustations on the rocks (which it was eating) are gone.

--Kurt



Yes, they are tiny free floating insect like creatures. Not sure what
the barnacle like things you are refering to are...

You can by live copapods online to feed your mandaring. Just google for
"live copapods". Or your LFS may sell them. The more common brand is
known as "tigerpods"