Nice- they look pretty good! Let them get thirsty before you give any more water. Let the roots breath, and grow in search of water! I use a beer pitcher and 5gal buckets. I just cycle through the pots, giving about 1/2 pitcher to each as i go. This last run, twelve 3gal pots, i used 15gals (three buckets) of water each time i watered. This got the soil completely saturated, and then as you use the last of the water, it pretty much runs/pushes straight through the growth medium. That run-through helps do a minor "flush" each time, and helps keep your soil's chemistry balanced (avoids nutrient and salt buildup). The key is to get em wet, and then let em dry out.