Don't get a clean up crew they will have a rough time through the cycle. Most inverts can handle high levels of nitrates. If I were you grab some Prime at the lfs
and go by the directions so the ammonia spike won't kill him. It's going to be hard on you because you don't want to do water changes during your cycle only after your Nitrites and ammonia has both gone down and you only have Nitrates. Then you will want to do a water change to bring them down.
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