Discolored leafs, slow growth

[EagleToVulture]

Please help me diagnose what is wrong with my plants.

Strain: 3 Nirvana ICE, 2 KC Brain Crystal Paradise
Medium: Miracle Grow potting soil, 1/2 perlite
Time: 34 days flowering
Nutes: 1/2 strength GH Florabloom 3 times, after I found the discoloration my first diagnosis was either a P or K deficiency. I'm waiting on my new quart of Tiger Bloom, so went to Wal Mart and got a package of their Bloom fertilizer and fed them at about 3/4 strength. Earlier tonight, when I went out and got some PH testing strips, I found out that my PH is below 6.0, so I flushed them all out. My next step would be feeding them 3/4 strength Tiger Bloom tomorrow when I get it, does this sound correct?

Very much appreciate any help available!

Pics below...

 

[TBug]

What size pots they in? I dont grow with soil myself, so I dont know if I can help. But I'll say your plants "look" just like mine towards the mid-end of flowering. Usally root rot is what i blame due to high temps. when that happens, it doesnt matter how much nute you give them the root cant take it in. Maybe some one else will know more, but you might try a foiliar spray of some sort(liquid karma and/or dimond nectter plus maybe your current nutes)...Just a thought. I used a sample of "Excalliber Roots" once and that started to bring the color back to the leaves and new white growth on the roots. but after a couple days they went bad again. Good luck and Peace, TBug

 

[sproutco]

Your soil is actually probably considered soilless. Ph range should be 5.6-6.2 Check my signature for proper ways to test soil/soilless ph.

Does your soil have dolomite lime? That would be your source of calcium and magnesium if your fertilizer does not contain it. If needed, you can add cal/mag to your fert by using 1/4 teaspoon powdered gypsum + 1/4 teaspoon epsom salts per gallon of water along with the regular fert. I would add this every watering if little or no lime and add it every third or fourth fert if there is dolomite lime because levels often run low.

I wouldn't feed the plants so much. Relax, they will flower.

 

[MynameStitch]

if your potting soil is enriched its not considered soiless, the seed starter mixtuer is considered soiless becayse it contains mostly peat perlite and small amounts of mg food

when did you transplant thsee plants into your soil mixture

and what brand of mg soil are you using>? the time released ferts?

when did this problem happen

when you say you used 3/4 strength, how much water did you use and how mch nutrients?

what size pots are your plants in and how bigare the pots?
but the ph is not supossed to be that low you want it around 6.3 to 7.0

you will need to get some dolomite lime like sproutco has stated,

but i need to know what soil you are using what kind of mg soil and i am thinking o what the problem might be but need to know more info first to be sure

 

[EagleToVulture]

You guys are awesome, thanks for all your help!

TBug: They are in 1 gallon pots, but they are only 1.5-2' tall. I don't think it's root rot, I'm a conservative waterer and my temps are in the mid '80s when my light is on.

Sproutco: I checked the runoff of my soil with the PH test strips. It only gives a numerical value starting at 6, but it looked atleast 6 and a little bit lower, so we flushed them out. Our soil doesn't have dolomite lime, I'll make sure I add it into my next soil mixture though, because of these problems. I'm introducing Tiger Bloom today, after the flush, at 3/4 strength, does this sound correct?

MynameStitch: I transplanted into the 1 gallon pots when I switched the lights. This problem appeared about 4-5 days ago. I haven't fed them at 3/4 strength yet, but plan on feeding them 3/4 strength Tiger Bloom today after the flush. The plants are in 1 gallon pots but are only about 2' tall. I found out the PH was below 6, so I flushed them out lastnight. Is there anyway to add dolomite lime other than mixing it in the initial soil mixture? The MG soil I'm using is below...

Thanks again for all your help guys.

 

[sproutco]

Check the bag and see if they already added lime. I would not use soil indoors that has slow release/time release ferts. It might advertise "lasts 3 months".

 

[Verite]

That MG enriched soil with the time release ferts is the cause of more problems for just about everyone that uses it. I would avoid it like the plague.

 

[EagleToVulture]

That MG enriched soil with the time release ferts is the cause of more problems for just about everyone that uses it. I would avoid it like the plague.

Will do, but does ANYONE have any idea what the hell is wrong with my plants?

 

[EagleToVulture]

Is there anyway to add dolomite lime other than mixing it in the initial soil mixture?

Aaaand, so flushing was a good idea?

 

[BluEBLaZeS]

now what about horticultural hydrated lime? will that suffice? does it just not contain mg?

 

[R00KIE]

Use dolomite lime....
Hydrated lime is very fast acting and has a ph of 14...

 

[Verite]

Will do, but does ANYONE have any idea what the hell is wrong with my plants?

Your plants are being forcefed with a combination of your fert applications along with the crappy MG time release ferts. You could flush like the mo-fo and your soil is still going to continue releasing its ferts. Either stop feeding it alltogether and baby feed it some of what its lacking or transplant it into a more user friendly potting soil.

 

[MynameStitch]

if your bag does not say time released ferts, that picture you re showing is the old bag they redeisged it and had time released ferts

if it is time released ferts you are burning your plants


not to mention your plants are root bound

12 in tall plants per 1 gallon size pot MINIMUM

mg soil is not bad if it does not have moisture control or time released ferts

ill show ya all pics of my grows with mg... 7 feet tall plants and hell of a yield under 400 watt hps lights

if used right mg can grow some kick ass plants

but with there soil mixture changed you have to dilute it with some other soil to be able to use it

you are burning your plants

get into different soil if your mixture is time relesaed ferts

2 gallon size pot

 

[EagleToVulture]

Thanks for all the help guys, won't use MG soil and will use larger pots next time. 1st grow, still learning.