Nice and neat setup. I believe we all tend to over water the first time. I'd say that a once a week soaking is all you need.
Wait to feed when they have 4-5 sets of true leaves.
For watering: stick your finger in the soil up to the first knuckle. If it is dry for the first inch that will help control pests. If you can feel moist soil at the end of your finger it is good for the plant and no water needed. Dryness past one inch means it is time to water. Do this in the middle of the pot. The edges will dry out faster.