Need help in identifying a very small critter

[Adrianne]

I will admit I was reluctant in setting up a saltwater acquarium. The work involved in balancing all the life in the tank out and the expense of the hobby terrified me. Now that I have been doing it for a little over six months, i am not so scared. However, with all of the balancing, adding fish, balancing, adding live rock, balancing again, add a skimmer.....you have the idea, I have now found little creatures crawling on one of my live rocks that i cannot identify and I am hoping someone out there in Reefland can help me with.

They are white, almost transparent, and have a body shape similar to an ant, and move just as quickly. The only thing new that has been added to the tank is the food I am feeding the lion fish, and by-the-way, get stung by one, and you act goofy. Ask my husband. He will tell you. Anyway, we are feeding it frozen krill. Can anyone help?

[Reefing Madness]

Copepods. Really good things to have.
copepods - Bing Images

[Reefing Madness]

[Ryan seymore]

sounds like coepods to be too i just added live rock into my sump a few days ago and they are all over the rocks! very exciting when you find them even if its a few. free fish food! good luck with your tank!!!!