One of the best aspects of indoor hydroponic units is how very 'plug and play' they can be. Even people with a notoriously 'brown thumb' can have a lovely garden with very little effort. While you can get very precise and exacting, tweaking things to truly maximize longevity and harvest, it's really not necessary to get plenty of satisfaction and taste.
However, there are a few commonly grown seeds that benefit – if not outright require – a little special attention to get them growing.