What do you guys think the problem is?

1 week old rooted clones in happy frog soil. Watered only with distilled water. What do you guys think the problem is? Sorry for the sideways picture. Thanks

Magnesium deficiency

good luck with your grow

epsom salt 1 teaspoon per gallon. Be sure to check the ph of your water and make sure its about 6.5, temps are good 75-78, its not from over watering let dry ber watering. and the rh is 50-60% good luck