Nitrogen deficancy in my ak48 babies?

Hi everybody i have 2 week old ak48s that are getting very light green in the new growth and a tiny bit on some of the older leafs.They are just about to outgrow their potsand All i have been giving them is ph'd rainwater as i live close to a water treatment plant and the ppm is crazy in my tap water which i am certrain is the cause of death on my last plants. The only thing i can think of is a nute deficany as the rainwater has an ec of .08 which i think is less than 60ppm.Anyway ill let the experts judge by the pics. Any help greatly appreciated. Thanks

replant and use a 1/4 of the recommended Nitro fert should be fine after that just go easy on ferts coz they young

Thanks headrushuk i usually use west+ with added john innes from BandQ for soil, what mix of perlite dya should i use? 40/60?

mine is just a premix with everything in so i dunno about ratios but im sure that would be ok

That's the new growth, not the old growth. Looks more like magnesium to me, the ak's suck up tons of calmag, make sure that ph is dialed in to uptake it or u could have issues. I ran it 4 times, learned the hard way during round 1. It didn't show quite like that but very similar.

Either way, you need to get some food in there asap, no more straight tap. Good luck

Hey LBH thanks for the info. Lol I said it was the new growth in my first sentance tho and I said a tiny bit on the older leafs. Will be adding Epsom salts on next watering, is one teaspoon per gallon too much for these babys with 1/4 strength grow nutes?

Magnesium starts from the bottom, up, and yellows the margins of the leaves, not the inner portion

Pic of Mg def:

https://www.icmag.com/gallery/data/500/1134Magnesium-1.jpg

Looks closer to iron, to be honest:

https://www.icmag.com/gallery/data/500/1134iron-defRD2.jpg

https://www.icmag.com/gallery/data/500/1134Iron-def3.jpg

AK's do suck up more, but you'll hit that snag more so when they start flowering, then they'll guzzle it

Hey feelingreen just looked at the links and it does look kinda similar. Any ideas on how to treat it?

Like someone else said, I think they're just due for a general feeding and the iron's showing first, but if you're interested in iron specifically:

Any Chemical/Organic nutrients that have potassium in them will fix a Iron deficiency. (Only mixing at ½ strength when using chemical nutrients, or it will cause nutrient burn!) Foliar feed with chemical fertilizer containing Fe or rusty water can work well. Other supplements that have Iron in them are: Iron chelates, Ferric oxide, Ferrous oxide, Ferrous sulfate, all of these are fast absorption. Greensand, Cottonseed Meal is slow absorption, Garden Manure, which is medium absorption. Manure is most common organic iron source to use.

Click to expand...

I would avoid the rusty water, though, lol. XD

Keep it easy, though, some veg./grow fertilizer/nutes should do the trick, if possible make sure it has iron in it, along with the general NPK.

Thanks alot feelingreen, I gave them a quarter dose nutes and game them a foliar feed of Epsom salts last night