plants dying from the bottom up

hi peeps I posted lst week which showed my threeplants. The bottom fan leaaves and new growth were turning a bright yellow colour.
This happened after I had given them a flush because of nutrient burn.
So th advice I got was Id washed all the nutes out. Which made sense to me so I used some tomato feed which was what had burned them previously but Im not seeing any signs of it stopping. In fact its got alot worse and has now got to about the bottom third of each plant.
Should I just ride it out maybe add a bit more nutes I cant add many more cos it willl burn again.

Please all suggestions welcome as I havnt a clue and they will only last another couple of weeks at most. How long should it take for the noiutes to start being soaked up by the plant?
I thought it would have shown some signs of recovery by now.
Help I feel like crying

My friend had that problem. I think you're giving them too much nutrients try flushing your plants worked for him.

this looks like N deficiency.

what NPK ratio is your feed?


J

So u've already flushed. Wait til the soil dries out and start feeding again at a lower dosage.

most likely a N def. almost sure thats what it is or a nute lock out,

sorry 4 the late reply I wanted to check the tomato feed for NPK but ive still 4got (airhead).
I think it is N deficiency or maybe even Zinc after looking at this Marijuana Plant Abuse.
I did give them a massive flush so theres a good chance it's a multiple deficiency.
They were due a water today so I did another feed 2day Ive pretty much gone over the adviced limit now. So I think I will just have to play the waiting game.
I do get low run off ph's between 5-6 is this normal? I usually water at 7.5 sometimes Ive donne it at 8 and still get the same run off results. Whats the best way to bring the overall ph of the soil up a bit?
Could that cause the nutes to lock out?