Please help!

I need help diagnosing these plants im going to post some pictures of what they look like.........but heres some info about them......ppm 275 ph level is 5.8 humidity is 50% temp is about 70F.....havnt changed the res in about 3 days the plants were doing fine all of a sudden i see these spots on my leaves that wasnt there earlier when i checked them....also they look a bit droopy or like a heavy look....not sure what happend only thing that i did do different was i clipped a few leaves off each plant about 2 days ago....any ideas anyone? someone told me mag diff. but i dont think thats the problem.....first picture was this morning last picture was tonight! BIG DIFFERENCE

I cant believe nobody can tell me anything thats wrong....you gotta be kidding me right!!!!

wow, a whole 9 minutes between original post and outright disgust at the community?

pictures 2,3, and 5 look like nutrient burn.
picture 4 has me doubting that, though.

every noob suggests magnesium def like it was lupus.

Just trying to. get this problem fixed that's all!! So you got any ideas.....ur post didn't help

I was thinking burn also but im not a hydro guy I do know however that as your plant drink the ppms go up as water evaporates and is consumed if less nutes are consumed than water the concentration becomes higher. is your ppm measurment from when the res was fresh or is it current?

svchop889 said:

I was thinking burn also but im not a hydro guy I do know however that as your plant drink the ppms go up as water evaporates and is consumed if less nutes are consumed than water the concentration becomes higher. is your ppm measurment from when the res was fresh or is it current?

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That's. When ifirst changed the res. But I checked again to make sure and it was at 300 ppm......that's really not that bad for these size plants....I'm really stumped.....cause its only on 1 leaf on 2 different plants.....any other ideas?

dude ... dont be stressen on people ...im a hydro guy to me it does look like a mag problem chill if in a day they look worse flush and restart theres some thing off... but you should add a little more info on your setup ... flush with clear x

MONEY MONEY said:

That's. When ifirst changed the res. But I checked again to make sure and it was at 300 ppm......that's really not that bad for these size plants....I'm really stumped.....cause its only on 1 leaf on 2 different plants.....any other ideas?

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how white are your roots? they should be snow white. if not it could be an aeration issue not enough oxygen in the water.

little more info about my setup is 250 mh light right now dwc system 3 air pumps and 3 airstones in a 10 gallon res. water level is at about 7 gallons but i lowered it today to about 6 gallons because i noticed that the air stones were misting so far up on the netpots that my rockwool is kinda wet (wet from the top)...any more info just ask any help would be awesome! I will post some pictures of the plant a little later tonight for everyone to see what they look like today!

nute burn~~~~~~~~~

I just compared your pics to some pics in Jorge Cervantes Grow Bible and it looks like a Phosphorus problem. I cant be positive, or tell you if you are too high or low, but it does look just like the pics he published. You also mentioned that your rock wool was staying wet......this is a possible problem. Your PH sounds right but your PPM's are a little low for me---different tokes for differnt folks--. Hope this helps...I wish I had more for you....good luck!

You are on the right track. Keep fixing problems that are evident. Maybe back your light up a bit and make sure you have good air flow over your plants. From yesterdays pictures, the new growth looks fine. I don't think you are in dire trouble. Looking forward to seeing today's pictures.

Something is wrong myplants looks horrible now I mean there just real droopy and those two burn spots don't look good.....roots are not snow white but no sign of root rot....I mean there creamy yellow color from the nuets....but I am going to flush tomarrow with just the straight 5.8 phed water and I will have pictures for everybody tomarrow for sure....

OK here are my plants today i am flushing with just straight 5.8 ph water....no nuets....somethings wrong cant figure them out hopefully they will perk back up but they dont look to good...anybody have any ideas to save them?

when the leaf gets over loaded with nutes that is what happens it causes the leaf to burn,and lockout!!

indyman said:

when the leaf gets over loaded with nutes that is what happens it causes the leaf to burn,and lockout!!

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Do you think 300 ppm is alot for those size plants? cause thats what it was before i switched water this morning....

http://www.icmag.com/ic/showthread.php?t=11688

Scroll down to 'molybdenum deficiency' and have a look. It's the closest thing I've found that fits your problem.(I didn't look into diseases, etc...)

My plants have suffered with that look,the leaf tips are very were pointed (narrowed tips)
and white,it was nutrient burn in my case,i was using a dripper system with a 140l resevoir,as the plants used water more than nutrient the concentration got high after a few days.