Let the plant go through the stress of not enough water, it makes them grow a better root structure. I'm not saying let them dry out to the point of almost dead but just watch the plant and they will tell you when they need water. I use a spray bottle on small seedlings and it just takes a few squirts to make them happy after you see them drooping a little but once the roots come out of the bottom of the cup then bottom watering will work.
Keep us posted and good luck this year.
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