whats wrong with this plant?

[MisterE]

My rootballs are quite tangly too. Not near as dark as yours though.

[fasts102376]

i put some liq karma in ther. it makes it look like root rot. by the way mister e did u fix ur problem yet? if u did plz write me back and tell me what u did ok

[MisterE]

No I sure didnt fix my problem. I feel like I'm working on several issues at once.

My pic is not so clear, but my spotting has yellow/light brown in the center of the spot, then a border of darker brown.

On one plant, 2 of the biggest fan leaves from the same node curled upwards at the edges and got worse and I trimmed them about half way off (I leave the stem and some leaf area so it's less shock to the plant/branches). I just hated seeing them that way.

My red stemming bugs me too, and now the new growth looks lighter green than previously, curling downward, and feeling a bit stiff. lol

So yeah I've got several issues I think.

On the plus side (I guess) they're both short and very bushy.

[fasts102376]

how cold does it get at night? i've read somewhere thats what causes the stems to turn red..

[MisterE]

Well thats the thing. Red stems can naturally occur when it's fall time and you've got outdoor plants and it frosts or is near frost. But they can also indicate nute lock, immobile nute, deficiencies..
Just based on my reading that is. Search the board for "red stems" and you'll see a dozen various things about it.

My room temp doesnt get below 68 that I've seen. High near 80. Humidity at 22% currently. Water temp at 70.

My brown spots first showed up when I was using tap water and treating it quite regular with H2O2 because I'd get a white froth in the water otherwise.

I've changed to RO water since then and using calmag.

[fasts102376]

thats what i'm using now is tap water.. ppm of the waster is 150 and the ph is 7.1 but i let the water set 24hr b4 i use it.. i cant afford that good water.. lol i hope i dont to to go there,,

[Perp]

Earlier I said it could be manganese deficiency but now I think it is potassium toxicity, which can cause deficencies with other elements.

Go to the link in my sig Plant Problem Guide. Scroll down the page a bit to the potassium section.

When you have too much Potassium in your soil, it can lead to big troubles, like salt damage and acid fixation of the root system, as well as too much potassium can cause a calcium deficiency. Your fan leaves will show like a light to a dark yellow to whitish color in between the veins. Due to a molecular imbalance, potassium toxicity can cause a reduced uptake and lead to the deficiencies of Mg, and in some cases, Ca. Also leads to the other nutrients to not be absorbed properly leading to lots of other deficiency such as: magnesium, manganese, zinc and iron and can cause problems with calcium as well.

[HAPPYBUDDER]

your overferting back right down to 400ppm and come back up your roots are brown from 2 much ferts and your roots cant take it

[HAPPYBUDDER]

i will find a pic of a healthy root ball

[CaliJay]

Potassium was my guess too. Whatever the problem it is manifesting itself as deficiencies but is surely due to nutes locking out. You are right to flush. Do like HappyBudder says and Flush...Drop your nutes down(400ppm could be slightly low) and then bring them back up. Get your nutes to about 900-1000 ppm and let it ride there wait a week and see if any defiencies show up. If they do, diagnose them and treat the problem with the proper supplements.
I do not think with tap water at 150 you should use Cal-Mag. I would try leaving that out until you see a problem forming. Nothing I have seen looks like Mag. I recently went through a build up and lock out situation and learned to flush with ph'ed water every other resi change.

Good luck -Jay