what is the problem?

I have some plants in flowering.

One of them drinks up water fast, it is showing the first signs of burn I think as the tips of the upper leaves are yellow and some curling down and all the bottom fan leaves are yellowed. Some are a very light green, but for the most part yellowed. Why are only the bottom leaves yellowing. I don't want to cut them off because they are the biggest leaves on the plant but its like all of them have yellowed.

Another plant is smaller and less glorious. It has brown spots that look like probably a micronute issue so I gave it some pH lowered watering with micronutes about a day ago and will check on it later.

need some pics man

I'll post pics tonight

pics .

From your pics the leaf yellowing is just lack of Nitrogen. I have the same problem because I didn't feed them well enough in veg (messed up my nutes) and so now they don';t have enough stored up.. I think it would help to add more N to your ferts and reduce some other stuff, even though it is in bloom. The plant needs its leaves for photosynthesis, but it's not tooo major when they start to yellow and fall off. whatever you do, DON'T remove them.. that's just like taking gas from a tank that is already near empty. it's not wasting energy trying to heal the leaves, just taking the N to help with flowering. what week are you at?

yea I will use more nitrogen,
its been 2 months since I started the seeds and they started flowering 3-5 weeks ago

maybe more like 9 weeks

dbo24242 said:

yea I will use more nitrogen,
its been 2 months since I started the seeds and they started flowering 3-5 weeks ago

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yep. always add more nitrogen at weeks 3-4, Fox farms nutes schedules reccomend this and I believe it too.

from the looks of it i think u have spidermites my friend. lets hope im wrong.

chronicj69 said:

from the looks of it i think u have spidermites my friend. lets hope im wrong.

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I can't see any signs of spider mites.
Looks more like a lack of N, they are also lower leaves that will do that if theyr'e not getting enough light or rootbound.
Hard to tell without a pic of the whole plant and better lighting, pics are a bit dark to see properly.