The ghost shrimp, is in a way, a very good pet. It is strange to think of them this way because we all know them to be intended as fish food. From my experience, ghost shrimp can be quite enjoyable to watch the antics of and unlike most small critters, they are quite bold and will feed from the hand. I had a small colony of them in my ten gallon tank but when the killifish that I kept with them got big enough, he ingested every one of them. If you do wish to keep them as pets, I would wholeheartedly recommend that you keep them alone or with small peaceful fish such as platies or neons. I have had no success breeding the ghost shrimp. They are not likely to breed unless they are kept by themselves in a small planted tank.