Cal or Mag def or Nute burn or somthing else?

[DontBanMe]

They are in a flood table, flooding every 4 hrs for 15 min each.
ppms are 750ish
They started to show these signs when ppms were around 450ish
looked like cal and mag def. so i got cal mag + and added it in the res. and it seemed like the problem got worse.

so calcium or mag def? or is it nute burn or what is going on? im confused!

and help would be appreciated...

thanks later

 

[MynameStitch]

I need more information..... I know you answered some of these so just do not answer the ones below that you already answered.

HYDROPONICS:

What STRAIN are you growing?
What was the establishing technique? (Were the seed or clone?)
What is the age of your plants?
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
What Technique are you using?
What substrate/medium are you using?(Hydroton, RockWool etc.)
What is the Nutrient temperature?
What Nutrient's are you using?
What is the TDS/EC/PPM you are using?
What is the pH of the "Tank"?
Are you sure your calibration is correct on your equiptment?
When was your last watering?
When was your last feeding change? (ie. grow-bloom-micro-additional)
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor?
What is the canopy temperature?
What is the Day/Night Temp? (Include flucutaion range)
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
Is your water HARD or SOFT?
Has plant been recently pruned, cloned off of or pinched
Have any pest chemicals been used? If so, What and When?
Are plant's infected with pest's


Also can you take a better picture.... the flash is blinding the issue out and we can't see the picture to well.....

 

[DontBanMe]

What STRAIN are you growing? Hindu Kush (Nirvana)
What was the establishing technique? (Were the seed or clone?) Seed
What is the age of your plants? 3 weeks
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? Veg
What Technique are you using?
What substrate/medium are you using?(Hydroton, RockWool etc.) Hydroton
What is the Nutrient temperature? high 60s
What Nutrient's are you using?
What is the TDS/EC/PPM you are using?
What is the pH of the "Tank"?
Are you sure your calibration is correct on your equiptment? yup
When was your last watering?
When was your last feeding change? (ie. grow-bloom-micro-additional) today
What size bulb are you using? 250 mh and 45w CFL
What is the distance to the canopy? 250 mh 1.5 ft and cfl as close as possible
What is your RH Factor? 40's
What is the canopy temperature? 75
What is the Day/Night Temp? (Include flucutaion range) no night time
What is the current Air Flow? (cfm etc.) very good
Is the fan blowing directly at plants? over the plants
Is your water HARD or SOFT? 150 ppms tap
Has plant been recently pruned, cloned off of or pinched nope
Have any pest chemicals been used? If so, What and When? nope
Are plant's infected with pest's nope

 

[MynameStitch]

How much cal mag are you using? you are using tap water you should not have to use cal mag.....

You did not list what your ph was..... nor your water temps.... is 60 your water temps?
How often are you checking the temps?
WHat brand of nutrients are you using and how much is that... you have to take in account that your water ppms are 150 alone......
it does look like calicum but you should have NO issues with calicum ....... so this may be ph related.

Also hydroton can cause ph to rise very often it takes a long time after use and reusing before it does not cause the ph to rise as badly.

 

[DontBanMe]

ahh, 1 tsp a gal. or 5 ml
ph is 5.5-6.2 at all times
high 60's is water temps
my room never gets above 75 so i kno water temps are good
GH 3 part flora , its around 50% or so of reccomended dose
the thing is, there are 3 plants in the table showing problems, and 6 arent showing problems at all...and i use the same formula for every other strain i run (bubblegum, sadhu, hashberry) and never have problems. i think these phenos are very picky or something. its very annoying. im about to kill the 3 that are being assholes

my ph is always fine...i dont know it ****in weird, i mean ****in weird =]

 

[MynameStitch]

Can you get a few more pics so the flash is not blinding the pictures as badly?

 

[10k]

Cool new handle welcome to ICmag

In gh flora series mixes that arent bastardized with additional other crap, you'll need some additional mg most of the time although slight. Usually only about 1/8th to 1/4th teaspoon (per gal final res mix) of epsom salts dissolved in warm water and added to your final res mix does the trick just fine unless the plants show themselves to be the mg hogs as I suspect these may be.

You probably have pleanty of ca in that high tds tap water you're running, so I wouldnt use the cal/mag at all. Too much ca and mg gets blocked.

Some strains are bigger mg hogs than others, which may explain why you're only seeing the symptoms in these three plants.

hth

 

[inflorescence]

You probably have pleanty of ca in that high tds tap water you're running, ...

This is what confuses me right now.
I'm in So Cal with terribly hard water which would mean plenty of Ca AND Mg to me in the tap but yet I see Ca and Mg defic's when running flora nova.

but more specifiacally, why do you say the high tds in the tap is mostly ca and not mg.

I thought the hardness was almost an equal blend of ca AND mg?

 

[10k]

Its a head scratcher alright Inflorescence I agree.
The pictures look more like a mg def than ca def, plus he has one strain thats showing trouble out of three strains hes running in the same flood tray/res even though hes also using calmag in that high tds water. High ca can interfere with mg uptake and some strains are bigger mg hogs than others. Stoner logic...maybe ?