Problem with leaves

Any body know what this is? At first I thought it was thrips but when I look at other people with thrip problems the spots are all over the leaves. These spots are just around the tips of the plants. I'm using happy frog soil mixed with fox farm. I havnt used any fertilizer yet and I don't spray the leaves or foliar feed. I'm growing with led and I keep the lights about 20-22 inches away from the plant. Any help is appreciated.

what power led lights are you using?

I'm pretty sure they are 5w chips I'm using two Area 51 rw75 they use Cree XTE Cool White XTEAWT-00-0000-000000H50 R5

looking at the leaves they look like they have too much nitrogen ?

its not to worry about what older leafs look like its what new growth looks like it can be inherit traits a number of things
what ever you do do not make drastic change leave it alone watch new growth if it continues start with VPD

could it be were you drip some water on when feeding and the light has bleached it

I don't think its from a water spill because it almost looks like it's spreading. At first they were very small spots and the appear to be getting bigger. Although they could just be stretching as the leaf gets bigger. I know it isn't bugs because I took my Loupe and went over every inch of the plant and not one thing out of the ordinary.

Help? My bf pineapple chunks leaves r going lime green to yellow with brown spots thay r 6 weeks into veg what the hell is going on is it nute burn or something else the pic on the left is my plant I am using a 300w led panel

Yellowing is caused by few things over watering, ph is out or not enough nitrogen , or insects not enough lighting its one of them

How do I give more nitrogen I give my plant 1 litre of water a week I have no insects and I use a300 watt led panel light and my ph is7

grass clippings ,, blood meal just go to store and buy some fertilizer line with decent ratio's

It'll be fine. For future reference:

<img src=http://imcannabiz.com/wp-content/uploads/2014/11/user185327_pic762291_1317477385.jpg>

Grass cuttings ???

Happyman420 what do you mean it'll be fine for future reference

R u sure happy man 420

I have also flushed the plant today should this be ok

Jamie green fingers # said:

Happyman420 what do you mean it'll be fine for future reference

Click to expand...

the it'll be fine comment is for the person that posted the thread. Your plant sounds like you should flush your plant with pH water at 6.0 until it runs clear and let it dry out for three to five days. Remember, Oxygen is crucial to root development and nutrient uptake. Water is just the vessel in which the nutrients travels throughout the plant.

Usually, nitrogen is in abundance in any soil, rather its locked out from having too wet of a root area. Flushing a plant will remove any unwanted salt build-ups that could also be locking out nutrients.

Damn My thread got hijacked lol