need help whats wrong with my plants?! pics

So for some reason my plants arent doing to hot in their third week of veg. They were doing great the first two weeks growing like crazy and dark green healthy. I have tried giving them higher doses of phostphorus in their food, raising the temp a little more(room is about at 80 degrees at 50% RH) Im starting to think they have a disease or something. Im pisssed because they looked so good and now they look like crap. Some of the leaves are crunchy with spots and curl downwards almost like they are thirsty. They also seem like they arent growing anymore. Im running four different strains so Im sure it isint the strain. I have plenty of air moving through the room too. I havnt been bringing in much outside air becuase its cold outside so im not sure if its a co2 problem. Keep in mind im new to indoor so dont be too harsh on me if I made a stupid mistake.

Nutrient burn. Overdose.

Really? Thats odd because I have only fed them once so far.

Like pregnancy... it only takes one time.


Flush them well and when it's time to feed again only use 1/4 nutes when they're hungry again

So just keep watering them until they are hungry again?

yes, it's common problem and we all do it from time to time

I have two different strains of plants, The same age and I fed them both the same exact amount of nutrients, One burned and stunted while the other grew like crazy and had no burn at all. Just remember to ease your plants into nutrients, start at 1/4 the recommended dose and work your way up. But for right now just water

So your saying that it could be a phostphorus defficiancy?

Stop! They look over fed and over watered. It also looks like you have a calcium dficiency and possible pH problems. So what to do. First let them dry out a bit. Then when you do water and feed again cut your nute dose in half at least.

ok great thanks for the info!