Strange spots

A friend of mine has 3 plants growing in a home made "grow box". They have been growing for about 4 weeks or so now. The two plants in one pot have been growing at a relitivly average pace but the one in the pot by its self is a paradice seeds magic bud. It has grown quite vergerously and is only about 2 weeks old. In the recent weeks the plants started to devolop strange spots that apeared that the leaf was thiner in that area and then it turned a dead orange/yellow colour. The growth of all three plants has also slowed right down. When i asked him what he was using for air circulation he said he was using nothing. Could this be the problem? I would really apreshiate any feed back! Im new to this web site, as i came from Overgrow.com. So i am looking forward to some new friends to gain some more knowledge and share info with eachother.

Hey Rastaman!

Welcome!!! You're going to like it here... people are very friendly.

I'm a noob, but, do you know the pH of your water?

That's the only thing that pops to mind...

Best,

-turtle420 :cool:
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Thanks for the post turtle420! I actually am in the process of buying a PH level kit. so as of now i have no idea on the ph

Looks like ph is off or severe nutrient burn.Have you been feeding it chemical fert. at a rediculous level?

If you dont have a meter I would check out the Hanna 9044 cheap and does it all. Very accurate. Better then any you will find in a grow shop at a third of the price. Check ebay or call Hanna for your local distributor. it 120 usd and does temp, ppm microsiemen ph and is a constant monitor so no worries about batteries. I have tested the ones in the shops and just dont get a truncheon they are a promotion for a company that makes expensive equiptment in new zealand are they sell them to the shops for 19 dollars. not worth the 120 they are sold for. I called the company to get answers about this expensive stirrer that would give me a lower ppm on both i tested when i would add 1000s of ppms. They are good for playing magician while scuba diving bout thats about it.
One love
c