Seedling getting yellow tips and leaves

[Longhini]

i am growing an autoflower Auto Amnesia haze day 15 since planted in soil only fed with water PH no nutes yet , soil is 3 compost 3 peat moss 2 perlite 1 vermiculite , shall i start the flora nova grow ??

 

[Longhini]

plzz heeeelp

 

[MrFortwenty]

plzz heeeelp

Not the best pics, but to me it looks way over watered. The medium is soaked and the true leaves are dropping down

 

[baxbax]

what kind of compost you are using ? if you use bagged peatmoss and your pot is big enough peat has enough nutrients for their 4th set of leaves , looks like nutrient burn and root damage from hot soil .