generaly, I would suggest you continue to test each day for a couple days after the cycle has ended, just to be sure, then once a week from there on until you're done adding "stuff" to your tank and you're comfortable things are stable. Any time you make a change to your tank, adding rock, fish, pumps, filters etc, I suggest increasing your testing frequency again to be sure the change does not have adverse effects on your system.
also, I'm only mentioning this because Malkore used the term "cocktail
shrimp" this NOT what you want in a literal sense (shame on you malkore!
) as cocktail
shrimp are cooked and may have additives, you want a fresh uncooked (preferably unfrozen) shrimp.