I have a sentimentality about poppies esp the corn poppy, but ice never been good growing anything from seeds.
But I decided to try a container with some seeds and I filled the directions but I now have hundreds of sprouts in this small container. I used way too many seeds I guess. And they sprouted very quick.. 6 days. But now I basically have grass..lol it's thick and they are about an inch high and seem to have stopped growing so fast but they are not dying off.. At least not yet. I have them in a very cool environment about 72 degrees in a very bright and for a few hours more directed sun window. Its been about 3 weeks now. I'm unsure whether to leave them alone or cut down parts. I was told not to pull any out for it may hurt the poppy roots next to them. And I'm unsure how much to ten down or how I should thin out at all really. I hate to do it but I think they maybe not growing anymore because they are fighting for nutrients etc.
And any ideas on watering? I haven't watered from the top except heavy misting at first then I had used a long wide container with watering holes in the side so I'm doing that mostly but I have a horrible tendency to over water everything. Any advice on all this is greatly appreciated.
Thanks guys and gals!

Yep! You might have gone a little overboard on seed sowing.

The safest way would be to cut the heads off about 99% of the seedlings. But, Papaver is one of the genus of poppies that do transplant. You could maybe take bunches of seedlings out (you will be sacrificing some of the seedlings but not as many) by digging straight down and out an inch or so and lifting a group to transplant someplace else. You will never have the recommended spacing but with fewer plants, they will do better.

It's entirely too late for planting poppies in tx.
If you were in Maine, you might get something.

Best thing to do...
Toss that mess on the compost, and look around for a likely spot come october.
The goldfinches are busily harvesting the seeds from my poppy patch...
Planted in October, bloom April & may.
Mine have almost entirely finished blooming.

I agree with Stone. I pulled the last of my poppies today too.