First Grow ...need advice on whats happening(pics)

just trying to figure out whats going on with my plants... before it was just some plants doing it now its all off them ... was watering with strait water ... just gonna started giving them green nova stuff buit they have been doing this for a while now ...drooping and yellowing ... red stems .and some leafs are kinda wavy and curly? have no idea lol...could this maybe be from overwatering/underwatering or nute defeciencies???
they were all totoally fine and nice untill about a week and half ago HELP!!!!!!!















someone help before my little ones bite the dust!!!!!!

you're watering too much. If i were you, water every 3 days. If that's what you're doing, Water every week.

If you're adding veggie nutes, WHAT I DO.. is nute every other watering time. That way it can kind of get diluted just in case my PH gets messed up. I don't have a Ph controller.

Your red stem might be genetics. Some of my plants have them and they are growing nice and they are flowering properly. I am fighting dust mold though. >_<

It could be multiple problems. I have had some similar problems with my vegin plants. The leaves will contort and disform. I don't know what happended to make them do that, but I konw what helped them come out of it. First of all give me some more info on you stuf: ie: growing medium, is it soil or is it soilless. This can make a huge difference in determining what to do. I was growing mine in a soilless mix. I had my plants packed to tight into a 3x3 foot tray. I had 12 in one tray. 4 rows of 4. Also I was not on a diciplined watering/fertilizing regimine. I would just add alittle water real quick and that was it. Pure lazyness on my part really. Anywya, what i have done, and it has pretty much fixed everything, is leach all the plants thourely with PH adjusted tap water. Make sure you adjust the PH to about 6.5-7. Use distilled water bought at any store if your tap is unfit for plants. You want to leach the pot with atleast twice the ammount of water to soil the pot holds. For example a 3 gallon pot would be leached with 6 gallons of water. Do it slow so you can get the water through all parts of the pop. Now if you want to check to see if the leaching is working get your TDS meter and test the runoff water from the pots and see what you get. If it is high then thats probably the problem. But if you send me more info on your stuff I can probably help you out more. IM me if youwant to, I don't mind, and I will be up for a bit.
Lucas