what do yous think n def? they have only been getting water, very yellow indeed , no dead bits

if n def ill spray them with biobizz grow, they are three week old, under 80w tubes just started giving them 6 hrs dark today. ventilation is fine and in grow tent.Click to view attachment Click to view attachment

thanks for time

Looks more like excess (N) to me at that age. What compost have you got them in? And you haven't fed them anything have you?

nope m8, from a failure b4 i have fed just water,,, the ones on the right were just moved from little two inch pots to 1l pots ,, the ones on left are in 1 ltr pots i will repot them into 11l pots soon.

ph tends to be 6.6 but i might go as low as 6.3


watering hmm once ev three days

thanks for quik help

p.s biobizz all mix

so the plants on left showing less yellow, but similar have been watered normal and have been in 1l pots for three weeks,, the plants on right have only had small bit of soil in 2 inch pots they are showing it more,, which makes me think they have used up sumthing in the soil faster- having less to use and showing more symptom

The Allmix is far too hot in the (N) dept for them. Whatever you do, don't be repotting anything into 11l pots, or they'll die.

When you mention ph, are you adjusting your water?

yes m8 i use ph down grow, il look at bottle 2 sec

advanced hydroponics of holland 38% nitrate acid

it also says grow on bottle so not for bloom stage, and i v v sparingly use to lower


my water supply is soft water

Stop using chems to adjust your ph, & just use tap water as it comes from the tap mate. Keep them in those pots for at least another 7 days, & only water when needed. You might have to cut back a couple of leaves back to healthy tissue as tissue dies due to that excessive (N).

And i wouldn't be potting them on into 11l pots either - go for an intermediate pot before the 11l. Let their root mass establish properly before repotting - check this thread - http://www.uk420.com/boards/index.php?showtopic=4080&hl=

ok m8 i will do this,, r u sure though?, my water is 8 with no adjustment

The Allmix will buffer it down.

thankyou m8 will give it a try