Identifiy the problem

[marx2k]

~800 PPM CalMag + FloraNova Grow
PH @ 5.6-5.8 at all times
-- Skunk #1
-- These are clones under @ a little over two weeks of vegging - I did find algae in the res, so I changed nute solutions last night
-- They are under 18/6 cycle
-- Plants are getting progressively worse as time goes by. This seems to mainly effect the fan leaves...

marx2k Reviewed by marx2k on 03-30-2006. Identifiy the problem ~800 PPM CalMag + FloraNova Grow PH @ 5.6-5.8 at all times -- Skunk #1 -- These are clones under @ a little over two weeks of vegging - I did find algae in the res, so I changed nute solutions last night -- They are under 18/6 cycle -- Plants are getting progressively worse as time goes by. This seems to mainly effect the fan leaves... Rating: 5

[Chris Seekins]

Damn that was a quick lock up. Good to know what to look for.

[Kush Over]

Jesus H.

Looks like a nutrient burn, or even heavy pH fluctuation but you say it's between 5.6 and 5.8.

Hm.

[Chris Seekins]

It looks to me like a calcium defecincy do to lock up.

[marx2k]

I'm actually really glad you did catch that, Kush. There has been some heavy pH fluctuation. I'm trying to keep it steady and it has been steady within the past week or so. I'm hoping the problem STOPS. I doubt it is nutrient burn as the nute levels have been at 600ppm MAX since the beginning. I dont think 600ppm is high at all for clones. Again, I could be totally off. But even as the nute levels have gone down from topping off, it still continued to effect the plant. Seems to effect mainly the older leaves. I *really* hope it's just pH fluctuation.

[Gen]

Are you spraying with anything?

[marx2k]

Not at all, Gen. It does look like that though, I must say. I wish it were the case.

[GluteusMaximus]

Is there any trace of this spotting on the new growth? The reason I ask is it appears that you may have had a problem when those leaves were young and it's just now showing the damage.

Because my grow room was behind schedule, I had to leave my seedlings in peat pots a little longer than I wanted to. They were slightly deprived of nutes during that time and I had sprayed the leaves with water while they were getting light (a real "no no") and some began to show those very same symptoms especially after a few days passed. The leaves began to grow bigger and the damage from the prior lack of nutes and sunburn was more evident, however, the new growth was in good shape. Fortunately I had other plants growing in the same nutrients that were showing no signs of deficiency so I knew it was not my brew causing the problem.

I noticed you have a plant to the lower left of the one displayed that looks exactly like one that I have. The totally destroyed leaf that is spotted and drying up. My plant that is exhibiting this same symptom in it's lower leaves is recovering very slowly, but the plants that grew right next to it are thriving. I discovered that the plant responded better when I treated it like it was still a seedling. Since it's sick, I figured that it was unable to uptake the nutes at the strength an otherwise healthy plant could. So I lowered the ppm to 500 and backed off the watering frequency and moved it away from the light. Two days later the new growth on the sick plant began to perk up and it's been improving ever since. Since the lower leaves were damaged severely, I knew it was just a matter of time before they dried up, so it was my intention to get it's new leaves to grow as soon as possible.

If we could only teach these plants to talk, they'd make our jobs so much easier!

GM

[GluteusMaximus]

I should also add that your leaf appears to be magnesium deficient perhaps caused by too much calcium.

GM

[GluteusMaximus]

OK, I'll quit babbling I swear...but first this.....are you using reverse osmosis filtered water? If you aren't, then you may have too much calcium using tap water with the calmag+.

That's all for now, I promise