Pretty much what the spoonman said. I love using reefs2go.com for there copepods. If you get on there deal of the day you can get 2,000 pods
for 24.99 free shipping.
I like reefs2go because the pods
come in a bag of saltwater on media and all you do is place the media in the tank for the night and in the morning there all gone either eaten or they made it into the rocks.
Just spoon said. Turn everything off and introduce them in the dark. I turn everything off for about 20 minutes and I even cover the tank with a towel because the tank is caddy cornered in my bed room and I don't want the light from the TV to interfere with them getting to there hiding places.