Yes that sounds right for a standard commercial hydroponic mix and can be used for a variety of vegetables.
You didn't say if your water returns to a reusable reservoir but from your description I don't think so. So watering cycles are tricky with a non retrievable system. You want to try and water only what the plants consumes so all your
nutrient solution doesn't run out the bottom to wherever. Disney World does this by weighing 1 plant in each row measuring how much water the plant consumes thus letting the system water all the plants in that row the same.
I would which your garden to a reusable system if possible unless you have deep pockets.
Let them get well rooted before washing the dirt off and they will have a better chance for survival.