Dark green leaves, drying out and curling?

3 or 4 of my larger fan leaves are significantly darker than the rest of the plant, they are also curling under and drying a little. its about 6 weeks old from clone, i have an identical clone in the same room that isnt having this problem. not sure if this is natural or a deficiency.

I had the same problem with an ambrosia. I think it ended up being the soil and/or a N abundance, I re potted with new soil ++ more pearlite and found a fert with less N and she was sweet.
good luck

ps also watch your watering, may be over watering with leaves curling down

I thought it might be the soil, im using miraracle grow organic choice. do you know of any reasonable soils with perlite worth buying?

Nitrogen overdose. No nutes, water only, keep going. Start nutes ONLY when indicated.

Thanks for the help

You will get it done. You recognized the dark glossy green and curl - both signs of excess nitrogen. You're on the right track. Keep reading the plants and good luck.

N overdose. Its like the first deficiency you see talked about when you check out any guide!

you mentioned overwatering. I have it on a twice a week watering atm with distilled, cause it usually takes 3- 4 days for the soil to dry. is distilled water effecting it?

On second thoughts bro they look sweet re. watering. I doubt distilled water would be root of the problem, i think any problems caused by using distilled water have a very gradual/minimal onset???