Over the first year you will find that your tank evolves. First and foremost - research as much as you can about this hobby. Very few things require immediate action and more often than not no-action is the best action for the reef.
There are several places, including LFSs, that will set you up with a 'clean up' or 'janitor' crew (snails, crabs, sand sifting stars, etc) that will help to keep your new tank clean-er. Problem is the algae growth cycles in a new tank is not continuous to keep the initial 'crew' sustained.
My personal favorite - a turkey baster to blast the rocks occasionally of detritus, etc.