Help with my plants, not sure what is wrong

[Underize]

Hello all of you out there, please take a look at my plants and let me know what is wrong with them. I have only two, one has most of their leaves curl down, looks like a claw and the other... well is worst. Take a look at the pictures that I have attached.

I have a 1K MH bulb on them, with revolving fans, temperature doesn´t go higher than 28Celsius and humidity sometimes is higher than recommended but not extremely.

[polishpollack]

what fertilizer? how often? what soil?

[Underize]

Fertilizer: General Hidroponics Drain to Waste Cycle, see attached. How Often, twice a week or every 3 days approximately, and when soils gets dry I put plain water. Soil is Roots Organic, see image attached. Any ideas?290389290390

[polishpollack]

Why are you giving ferts twice a week when the feeding schedule says just once a week? Roots soil already has fert in it, which the fert schedule doesn't account for. Just give water for a week or more and see if this clears up. Are you just giving the grow fert? Anything else? if so, I'd stop that for a while too.

[Underize]

Yes I´m only using the fertilizer. I have read about stress in plants, can this be consider stress for excess of fertilizer?
I´m going to follow your instructions. Thanks for your time, I appreciate it !