The cleaner shrimp will have to be fed they arnt really a part of a cuc. I would actually hold of on the cleaner until you add more life to the tank and it stabilizes. Shrimp are quite sensitive and the cleaners are awsome so I would hate for you to run into problems. Start small, one or two snails and a hermit should do to start. This way you won't have to feed your "clean up crew" to much and it will allow you BB to build up to adding fish. I did this and it worked great for me. A lot of people add way to big of a cuc and in the end most of them die. Start small and add only as needed. After all they poop too.