cal-mag issue? due to ph fluctuation?

[idoreallytry]

hi all need a hand trying to fix my baby's hoping i get me a grapefruit so please help!!!!!!!!

How long has this problem been going on?3 days
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents)no
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)drip 2-3.5gal buckets 7 gallon res recirculating
What STRAIN are you growing?female seeds indoor mix
What was the establishing technique? (Were the seed or clone?)seed
What is the age of your plants?2 weeks
How tall are the plants?6 inches
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?veg
What Technique are you using?drip once every 2 hours
What substrate/medium are you using?(Hydroton, RockWool etc.) 4 inch rockwool cube sitting on hydroton and hygromite
What is the Water temperature?66-72
What color are your roots? White? Brown? Are your roots slimy?white
What Nutrient's are you using?(If growing soiless) advanced mico gro bloom voodoo sensizyme sm90
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*haven't fed above 400ppm yet
How often are you feeding? (If using soiless)every 2 hours
How often are you giving nutrients? (If using soiless) every 2 hours
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)micro gro bloom
What is the TDS/EC/PPM you are using?350
What is the pH of the "Tank"?5.5-6.0
Are you sure your calibration is correct on your equiptment?yes
When was your last watering?flushed with distilled last night
What is your water temps?66-72
When was your last feeding change? (ie. grow-bloom-micro-additional)2 days
How often do you clean your system: example: Flush out water replace with clean water and nutrients?onse every 10 days
What size bulb are you using? 2 t5's
What is the distance to the canopy? couple inches
What is your RH Factor(Relative Humidity)?40
What is the canopy temperature?74
What is the Day/Night Temp? (Include flucutaion range)62-74
What is the current Air Flow? (cfm etc.)160 out 50 in plus open ports
Tell us about your ventilation, intake exhaust and when its running and not running ? all day
Is the fan blowing directly at plants?circulating fan
Is your water HARD or SOFT?140 ppm out of tap 7.8 ph
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?tap flush with distilled
Are you using water from a water softener? no
Has plant been recently pruned, cloned off of or pinched? no
Have any pest chemicals been used? If so, What and When? no
Are plant's infected with pest's? no

well just thinking it is a cal mag lockout... i was using organic nutes but something went bad so i flushed them with distilled water ph'd to 5.5 last week then this started so i flushed again last night same distilled 5.5 so i am thinking with all the flushing just not getting the right stuff plus when the organics went bad the ph was fluctuating so that migh be a factor as well... the problem has started from the bottom fan leaves and the first set of single leaves on both have curled up and yellowed and the fan leaves will crinkle like paper and crumble up they first get yellow spots then they get brown like fall leaves inside yellowing spots, they have yet to affect smaller leaves or top new growth... tell me what you think all here are some pics not the best quality but you can make out somewhat thx...peace

 

[mexilandrace]

injured leaves don't really ever fix themselves so don't expect them to change, will likely get worse

I am just a dumb dirt farmer so I can't really comment on what you should do though

is having a drip come on every 2 hours normal? I thought it was supposed to be way less than that.

 

[idoreallytry]

hey mexi... thx for stopping by... yeah i know they are never coming back i was just making sure that it was the cal-mag issue due to the ph fluctuation...this is just two waterfarms hooked up to a 7 gallon res and 285 gph pump waterfarms are meant to be ran 24/7 or so i have read the majority of peopl run theres 24/7...well my pump is to strong to run 24/7 it will fill bucket with too much water too fast and i would need more return lines to make it return faster than it fed... so i run it every two hours for 15 minutes and all is well thx bro...peace

 

[mexilandrace]

free bump for you, I like reading about hydro problems.(not in a bad way, I just like to learn)

 

[tree&leaf]

Wow, what a mess.

Firstly, don't used organic anything in hydro, Voodoo juice is whats caused your ph to go crazy. You can use organics in hydro, but you really need to know what you're doing and what organic nutrients you can safely use.

Keep it simple and get back to basics - you only really need to be using a grow fertiliser with decent N values at this stage, nothing else. Concentrate on getting the ph right and the ec right for that grow nutrient - that's all you need to be doing at this stage.

What is Advanced Mico? I assume you're using Advanced Nutrients, (I wouldn't touch them with a barge pole personally, but that's just me) which Advanced Nutrients grow are you using?

Your plants are showing signs of ph fluctuation and the burn/lockout caused by it.

You say you're feeding at 350ppm and no higher than 400ppm, with tap water. What's the base tap water EC? (ppm?) because that will impact on how much nutrient you can feed. If your base tap water ppm is 300, all your feeding is 50ppm of nutrient. 150-200ppm tap is about as high as you want it, you may need to mix 50/50 tap with distilled/RO.

Those damaged leaves won't ever recover either.

 

[spaceghost22]

I am just a dumb dirt farmer so I can't really comment on what you should do

Yeah, now that I think about it, I'm having what looks like your situation only in dirt. I second guessed myself and tried to fill in the gap in nutes... I most likely will over feed because of this lock out situation... but oh well, live and learn.

This is an old pic... but you can the discoloration starting on the tips of some leaves. It has progessed quite a bit taking a few of my leaves to the point where they were crispy brown and falling off (two leaves). I added some P-K oriented feed to this one and the plant stood still (health wise), the problem didn't advance.





I really do hope this helps coming from a lowly, simple ol' dirt farmer.

 

[idoreallytry]

thx for all the replies guys... yeah it is advanced micro grow bloom...and i went from organic hydro to advanced kept getting root issues and gnats so switched back to chemicals so everyonce in awhile i can throw in just base nutes and some 35% super oxy and give it a nice cleaning every couple weeks and still be able to feed nutes with it...yeah i assumed the ph cause all this i had a bottle of liquid karma go bad and it messed my system up that is what put the hurtin on these plants ppm of water out of tap is 140 so i add the rest in nutes to get to the 350-400 range t is making a nice comeback i flushed with distilled water super oxy and sm-9o and she stood back up just got to fill the res and get going now see what i get out of the deal...well once again thx a lot guys

 

[MynameStitch]

Wow, what a mess.

Firstly, don't used organic anything in hydro, Voodoo juice is whats caused your ph to go crazy. You can use organics in hydro, but you really need to know what you're doing and what organic nutrients you can safely use.

This is great advice for several reasons, one you really can't get an accurate reading when using organics in hydro, 2 some things used in hydro can kill organic beneficial bacteria,3 can possibly help trigger root rot sometimes.

Also, water farms are not meant to be ran 24/7 you have to get a timer and choose how long they need to be watered and how long for them to be off time.

That green algae you see in the first picture, get rid of it if it has spread, 1 tsp of h202 in the rockwool will rid of it, that shows the area is staying too moist and you don't want rockwool staying moist.

 

[idoreallytry]

hey Stitch... wow the sick plant guru himself...thx a lot....they were waterfarms so i turned them into recirculating drip...yes the alge was eradicated with the super oxy and sm-90...hopefully all will be well now..thx everyone for there help...peace