help me with my moby dick xxl autoflower

[cannabis grower 123]

My plants are 11 days old since the day they showed up on the Soil. Since yesterday that they are curling down the leafs. Need help to know whats is happening as i am a first time grower.
Never gave nutrients only phWater .
Im using a 250hps Light 40 cm above the plants 18-6 all plant cycle. 25L pots, plantes directly on pot after germination. Temperature 20 26 Lights on. Lights Off 18 20. Thermometer shows 20 because the Light was off. Just had to switch it to take the pictures .
Hope you guys can help. Thanks

 

[Smurfdope]

I replied to your other post. Slow down on watering. Let them dry out some. Once they’re a little bit bigger they will start “praying” leaves will practically point towards the light. That means they’re happy. Use that as an indicator for when to water. When they stop praying give them a bit of water.