Really depends on what you are wanting to culture. There are allot of different types of copepods some can be really hard while others not to bad..
Easiest to start with is Tigger pods. They just need Phyto and saltwater.
I was growing allot of phyto to feed them but it crashed because of some bad salt I purchased so I have been using RGcomplete in the mean time.. You can use any phyto to feed them really.
RGcomplete is what I suggest because of its good mix, shelf life, concentration, clean and has stuff in it to help with ammonia. Just super easy.
you could use spirulina powder too but it is easy to over feed..
It is a starting point. I just grow them in empty salt buckets filed half way with saltwater. Tiggers are not sensitive to salinity or temps like other pods which also makes them a good starter copepod. I do not give them any circulation or heat. Tiggers are that easy.
BBS need to be fed to fish right away they really can not be stored. They are the most nutritional right after hatch. I keep the eggs in the refrigerator so they last longer.
I just keep 3 cultures of BBS going. I start a new one every other day and rotate 3 cultures.
By the way I feed Pac-pods to my Pipefish and they love it. I am at the point it is so much easier to feed these that I am feeding less live food.
It takes a bit to get them to eat it because it is preserved and not live. I just fed it with my live food at first. Pipefish can be harder and more finicky than seahorses.
PLEASE NOTE THAT THIS PRODUCT IS NOT A LIVE FEED Pac-Pods™ are small, nutrition-packed North Pacific copepods (500-800 microns) harvested and freshly frozen at sea for maximum nutrition. In the ocean, copepods form the basis for much of the marine food web. Naturally rich in carotenoids...
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