Buying copepods

[gregzz4]

You could just buy them from mohamedalli, or whatever his username is

As for dumping them into your tank, I'd do it at night with your pumps off so the pods have a chance to find your LR before being eaten while they float around in the water column

And if you have a 'fuge, put them in there with the flow turned off for, I don't know, 5-15mins, so they can populate the area

If you dump them in with the pumps on, they will mostly get filtered out/eaten right away