Help A Weed In Need PLz! (Pics)

Im growing these indoors. In soiless medium.(Hydro) First time growing.(indoors) Using Cutting Edge Solutions Nutes. Water them once a day.. 10ml grow, 5ml micro, 5ml bloom. per gallon. Vegetative stage. Their about 4weeks old from seeds. Have them for 18on 6off. Under t5 lights. Temp. stay at 65f.-70f. during on hours, and 60f. during off hours. Humidity stays around 50%. I use distilled water to mist them(foliage). I also mix the nutes with the distilled water and i get a pH of around 6.5. Im using the drops/color to test the pH. I havent bought a ppm meter cuz i cant afford one right now. I think this is all the info. They are about 5in. tall. Some of them i think they got nute burned cuz the tips of the leaves look brown. Also, the leaves started to get a little yellowish. The only air they get is when the heater is on. I cant open the windows because its 10F. outside. Idk if thats enough air for the room. I just put a fan in thier hopefully that helps. On the other plant the leaves started to twist and some leaves have the tips pointed up. I would really appreciate any help from the pros and also thanx for reading!

Just a quickie.

I'm way south of "pro", but do have an observation or two

You have them in hydrotron, and you water them once a day, you say?

That will not do.

You are treating the 'tron like soil, brah.

'tron is a hydro medium and does not have the water holding capacity of soil or coco.
It wants ebb n flow, or drip.

And with a humidity of 50%, spraying the leaves is not necessary and distilled water can leach salts from them by osmotic pressure.
It's simply too pure.

Even rainwater has soot n spores n gasses, n dust in it.
Storm rain has a good amount of fixed nitrogen too, I think.

So, my opinion, stop spritzing and distilled water and wet the 'tron much more often.

Prolly don't want the bloom nutes 'til ya go 12/12 either, yah?

Might want to read up on hydro while you wait for them to recover.:)
Check the first link in my sig.:cool:
Aloha,
And grow-on!:cool:

Weezard

Plus one for everything Weezard said. :thumbsup:

One other thing is that you said your ph is 6.5. This is too high for hydro.
Bring your ph down to 5.6-5.8.

Best of luck to you and your girl. :hippy:

i advise you to check the following plant symptoms diagram before you think further about your leaf damage being caused by OVER ferts. could very well be an under situation. if you're feeding them only once a day using hydroton, then the roots could be drying out and not receiving enough food.

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