What is this, please help

[MTF-Sandman]

It's not an iron def...it's a lockout - so you NEED TO FLUSH YOUR PLANTS! Then get your PH straightened out and the plant will start growing some healthy leaves. Plants need such a tiny amount of iron that there's no way your mix is lacking Fe.

Your PH is dropping ~2.0 - this NEEDS to be taken care of NOW! If your PH is all fucked up, it won't matter what nutes are available to the plant since it won't be able to use them.

 

[Lady 420]

Looks like a micronutrient disorder. Include micronutrients in your fertilizer water. Bad ph or root damage from adding too much of those dry ferts at the beginning can bring these symptoms on.

 

[Brian1975]

I would listen to MTF on this one. The nutrient absorption chart says it all. PH is the first thing you need to address when dealing with plant problems.

 

[bushdoctor]

Thanks so much Sandman... I think I found out the problem. As u said, i plain watered them and they began to come back green. However, once the got greener i flowered them and even change to a new mix. Both mix runoff is 6.6. THe ones I left in veg are fine. but the flowering ones are showing the same sign. Befor i was ph ing my water which caused some of the problems. Now After checking the runoff it is at 6.6. So before nutes 7.5 then runoff is 6.6. WhY AM I HAVING THE SAME PROBLEM AGAIN IN FLOWERING. PLEASE HELP SANDMAN...

 

[MTF-Sandman]

Sounds like there's something building up in the soiless mix (nutes or PH buffer) IME that's causing your lockout. Did you do a thorough flush or just give them water instead of nutes?

What's the PPM going in and in the runoff?
You might wanna consider sticking with either coco or the soiless mix as well...it'll be alot easier to taylor the nutes/PH to a single medium IME. Coco likes a lower PH than the promix...but promix has a tendency to become acidic (the peat based versions) as the peat breaks down - which is probably further compounding your problems.

 

[bushdoctor]

well sandman my new mix is about 35 percent coco 25 perlite, 25% worm castings,and 15% oceanforest-promix blend.. with the epsoma plant tone as my dry ferts. when i flushed them in veg for about 5 days with plain water they green up like u said but that was in the veg mix. the flowering mix is the first one I stated. They have been in for about 3 days and the same thing is happenning. this is very frustrating

 

[bushdoctor]

In flowering I have given them only water with a little pirahanna and tarantula power in the regular water no ph adjustments at all. The runoff is 6.6

 

[bushdoctor]

the ppm is zero going in and about 900 from the runoff.. Is this a buildup of some kind or just the water mixing with my dry ferts.

 

[MTF-Sandman]

So did you flush them with at least 2x the volume of the pot or not?

What's the actual PPM of the H2O/piranha/tarantula when it goes in? I can guarantee it's not 0 if your meter is calibrated correctly.

You're making this alot more difficult than it needs to be...

 

[bushdoctor]

the ppm with the tarantula/pirananha is 100 ppm. I flooded the bed with this h20 pirannaha water. This has cause a mold in the soil of some kind. So I thought if I turned up the co2 levels i could elimate this problem