Help help help 5 week flowering two sick plants

HI everyone I need some help plants been doing great all levels seem good. Its my second grow and I haven't seen this before I thought photo A might be nitrogen diff but I am not sure but Photo B I have no Clue. Please help I hate seeing my girls SICK.

What should I do first? this regression has happened in two days

photo A looks like its overfertilize from the brown leaf tips.

When was the last time you flushed your girls?

Providing the following information would be very helpful in diagnosing your problem:

What type of medium; soil or hydro?
What brand and type of soil?
Indoors or outdoors?
What strain?
How old are the plants?
What type of lights and how many watts?
How far from the lights?
What is your watering frequency and source of water?
What, how much and when was it fed? NPK?
What is the medium/runoff pH and PPM if in hydro?
What are the temps and humidity in the room?
What size pots?
Any bugs? Look real close.
Any other pertinent info?

a good flush should help, then you can resume feeding at smaller doses

Soil Type: Micrale Grow and Growers mixer
Indoors: Carameliseous and Bag seeds
Plants are 5 weeks into flowering.
I have T5 = 20000 lumens and 4 150wats cfl . t5's are abut a foot away and the cfls are 5inchs in between for lower light.
I water when they ask for it around twice a week and feed with shultx blooming a tablespoon for 5 liters of water.
The temp is between 78 and 85 degrees depending on how hot it is outside... humidity also varies between 40% and 60%
There are no bugs
Pots Size 3 Gallons.

I have 5 plants 3 of them are perfectly healthy the other two are sick.

I have never flushed them yet ( Not sure how only my second grow ).

if u used the m.g. soil with the time release bb's becareful adding nute, i fried some plants using that junk, and if u flush u'll make it worse(if ur using m.g. time release)

Notice the leaves are dried up and going white.

I flushed two days ago and its fixed my other plant but it made this one worst.

I have tried everything besides transplating and its to far into flowering for that I think ... any help would be appreciated.

MrGhettoGrower said:

I don't know what to do with you plants. But next time don't use pre-nutrientized dirt!

Click to expand...

Well should I attempt to transplant or just continue with just water.... funny thing is all the rest of my plant are doing fine.... lesson learned.

I would say the 2nd one is heat stress from over nutes, best guess. It's hella dark green which means it's got a lot of N in it and after 5 weeks of flowering....are the leaves really dry feeling to the touch? Like crispy almost? I'd just use straight water. Some plants handle nutes different, are they all the same strain? Most plants if they start to get that dark green they are very rich in Nitrogen and that usually means they don't need to be fed. Here's a pic of one of mine that was in early stage of the same thing. Straight water and she turned out fine.

It seemed the flushing helped the one with the dark leaves.... but it did the opposite to the other one ... they are both different strains so who knows ... its all a learning curve to me or I should say growing... either way I'll keep my fingers crossed.