Help-New 3 inch plants went leggy and drooping over

So I have three strains that are about a week old and in grow cups. They have very thin stems. I gave them a few days on porch with about 4 hours of sun but they looked to be stretching for light so I put them outside at my grow site. They got plenty of water two days ago that I figured they'd survive these last two hot days. They are probably only getting 6-7 hours a day of sun at the grow site.

So I come out of a bar tonight and see it's raining and find out it's been raining for an hour or two. It wasn't raining hard, but steady. So I decide to go take a look at the plants to make sure. They were way drooped over laying on the rims of the grow cups.

Could it be that:

Even though the cups were soaking wet two days ago they started to dry up?

Were the drops from the rain even though fairly light too heavy for their thin stems?

Was the Happy Frog soil too rich for the seedlings and are they burning?


Even though it rained the soil was still kind of dry deep so I watered them and moved to a spot they'll get less sun tomorrow. They are of course getting no extra nutes or anything, just filtered water.

Seedlings need 18 hours of sun. You will need a moisture meter. And make sure those cups have good drainage. All of us have a tendency to overwater when first starting. You need to do some reading. VV

Thanks.

But this is an outdoor grow. There's no way for me to give them 18 hours unless I buy a light, of course, and bring them back in. But I shouldn't need to do that. I already started some plants this season the same way and they are doing great. Don't know what happened with these. Hope I go back tonite to find them perking up.