plants in a bad way, can anybody help?

hi, ive got a dp bb mother which has been vegging for about 3 months also 4 red dragons which have just been put into vegg, the problem is very clear as you can see from the pics.
the 4 red dragons were doin well then all of a sudden i looked at them 1 day and there was brown spots on the leaves and the plants were sagging and flopping down.
over the last 2 days my bb mum plant also shown signs of the same problem however i came home today to find the bb in a very sorry state, its flopping like mad and the leaves are either wrinkled up of very crispy.
the dragons are growing in a bucket with a sprinkler inside to feed them(ive grown many like this with no problems at all.
the bb is in a bubbler bucket(dwc)
ive checked the ppm's and there about 1.3ec and the ph on all plants are around the 6 mark so i have no idea what has caused this


if anyone knows whats causing this id be very greatfull for advice.
p.s. ive just changed all the water just to be on the safe side.

Hmm...

Your mother plant shows signs of N toxicity, underwatering or root problems.

The little ones could be affected by a pH lock out. Around 6 is not necessarily good... as far as I know (althou I'm not a hydro guy) 6 is pretty much the upper limit. You might want to lower the pH abit.

If it's not the pH, then it may also be the roots. I am sorry to say that I have no idea what 1.3ec means in ppm.

Doctor Cannabis said:

Hmm...

Your mother plant shows signs of N toxicity, underwatering or root problems.

The little ones could be affected by a pH lock out. Around 6 is not necessarily good... as far as I know (althou I'm not a hydro guy) 6 is pretty much the upper limit. You might want to lower the pH abit.

If it's not the pH, then it may also be the roots. I am sorry to say that I have no idea what 1.3ec means in ppm.

Click to expand...

hi, its about 900ppm, im gonna try lowering the ph like you said,ive also added some liquid oxygen as the roots were a bit discoloured.

thanks for the advice