Treating a nitro def in hydro!!

I think i may have over fed my plants nutes and they now look like they have a nitro def. i know people say to flush with pure water but is this the same for hydroponics ?
( nft system ).....

Oooooooooook, fire off alllll your information....

PH, PPM, what your feeding them, light, ect....

(Some pictures would be nice)

But until you list off all these things I would not be so quick to flush your plants or anything...

Another FYI: (Icmag)
"Unlike a magnesium deficiency, nitrogen def will start from the tips and work its way back to the leaf node. Nitrogen and Magnesium get confused. The best way to tell them apart is, nitrogen deficiency starts around the tips and works its way to the back of the leaves, where a magnesium deficiency will cover the entire outer part of the leave and make the entire leaves yellow leaving the veins to stay green. If your plants are having a slow growth rate and have yellowing of the leaves, then most likely it’s a nitrogen deficiency."

Ph is at about 6.2. dont have a ec meter yet ( is that a problem ) the leaves have a tiny lightening on the tips but the actual leaf is real dark green.
I'm feeding them IONIC Bloom ( did start with IONIC Grow ) and my lighting is a 6oow hps.
Will the plant adjust to nutes as it has water constantly running through the roots or will it kill them if i dont change the tank with a lower dose.
Also on a side note > the rockwool in the tray seems to have slipped down and i have read that the rockwool should not sit in the water. Would it be o.k for me to slide some clays pebble underneath them

jubbs1 said:

Ph is at about 6.2. dont have a ec meter yet ( is that a problem ) the leaves have a tiny lightening on the tips but the actual leaf is real dark green.
I'm feeding them IONIC Bloom ( did start with IONIC Grow ) and my lighting is a 6oow hps.
Will the plant adjust to nutes as it has water constantly running through the roots or will it kill them if i dont change the tank with a lower dose.
Also on a side note > the rockwool in the tray seems to have slipped down and i have read that the rockwool should not sit in the water. Would it be o.k for me to slide some clays pebble underneath them

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Are you going full strength? That's not a bad idea about the clay pellets, you'll have problems if that rockwool is sitting in water starting with root rot. If you don't have a ec or ppm moitor in your res's you have no idea where your at. Until you have equipment like this you need to go half strength at least to avoid over fert.

303 said:

Are you going full strength? That's not a bad idea about the clay pellets, you'll have problems if that rockwool is sitting in water starting with root rot. If you don't have a ec or ppm moitor in your res's you have no idea where your at. Until you have equipment like this you need to go half strength at least to avoid over fert.

Click to expand...

But thats the thing! i only used a quarter strength ( it says on the Ionic bottle to use 70ml for 10 litres and i have a 20 litre tank so that would be 140ml. but i only put 30ml in there) the plants are autoflowering fems and i gave them grow nutes for the first 3 1/2 weeks until the white hairs came up (flowering right? ) then i put them in the nft system ( first time using one/and first time grower ) and switched to the bloom nutes.
have i done something wrong do you think mate!

For hydro you reallly need a ec meter..... PPM fluctuates fairly quickly... and its not good flying blind... 3 days my ppm went from... 750-850 from water evaporation in my system.....
but yeah id reduce the strength to 50% and just get a meter..

I agree with the moving the plants up a 1/4 inch or so... root rot is not fun... if there already is signs of root rot.. get some H2O2 from your local hydro store... to snub that stuff in the butt (I swear by the stuff)