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Actually need more information; but I will say 200 will not burn them, you will need to increase it to around 500 ppm, you should always go by the size of the plant when determining how to feed.
I need more information though; can you fill this out? I will tell you what you need to do, but first I need you to ask these questions so I can give you a proper answer as I am not the grower so I do not know what routes you have taken or what you have not tryed.
HYDROPONICS/Aero Ponics
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
What STRAIN are you growing?
What was the establishing technique? (Were the seed or clone?)
What is the age of your plants?
How tall are the 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 Water temperature?
What color are your roots? White? Brown? Are your roots slimy?
What Nutrient's are you using? How much of each if using multiple?
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?
What is your water temps?
When was your last feeding change? (ie. grow-bloom-micro-additional)
How often do you clean your system: example: Flush out water replace with clean water and nutrients?
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor(Relative Humidity)?
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?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
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
What system are you running? waterfarm kit that can recirculate
What STRAIN are you growing?blue pearl/The Pure
What was the establishing technique? seed
What is the age of your plants? 2weeks
How tall are the plants? 5 to 8 inches
What PHASE are the plants in? veg
What Technique are you using? none yet
What substrate/medium are you using? hydroton soaked in 5.5 ph water for 8 hours
What is the Water temperature? 78
What color are your roots? hard to tell not long enough to see
What Nutrient's are you using? Advanced nute grow a+b
What is the TDS/EC/PPM you are using?nutra drip tri meter
What is the pH of the "Tank"? 5.7
Are you sure your calibration is correct on your equiptment? the ph is calibrated not sure how to calibrate the PPM not sure if it need to be
When was your last watering? 24/7 drip ring
What is your water temps?78
When was your last feeding change? 1 week ago
How often do you clean your system: no need to yet
What size bulb are you using?1000w mH on track
What is the distance to the canopy?4 feet
What is your RH Factor(Relative Humidity)? not sure
What is the canopy temperature?81
What is the Day/Night Temp? there is no night period yet
What is the current Air Flow? not sure
Is the fan blowing directly at plants? no
Is your water HARD or SOFT? tap 7.2ph 140ppm
What water are you using? tap
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
Not sure on the brand I will have to check, mostly there should be calbration fluid for each part of the mter, but will double check on yours......
Normally you are supposed to wait a while before sticking them in the system like that; you have to let them have a little root system established first before sticking them in there; but 200 ppms is not enough increase the ppms,
Next time wait till they are bigger before sticking them in there...... cause a lot of times they just don't like the system, there root system is very delicate and can show many problems.....
try increasing it to 300-400 range for now.
Also those water temps have GOT TO GET LOWER, even though they are smaller, you got food in there so you have to keep them below 70, or try to keep it right at 70, smaller plants don't like the too cold temps which is another problem not to put them in too early, warm temps will cause root rot....
When they get bigger 68 F,
is he 300 ppm including the tap water ppm?
When I gave my estimate that is not incuding the tap water, so the ppm would be around 440-540 range
You can do it a few different ways, one way is to alternate 2 liter bottles or 3 liter bottles. Have them,filled up with water and put them in the freezer, take one or 2 out of the freezer sticking them in there and after they thaw, put them back in the freezer and get the others out so you have constant temp control.
Do you have a res or are you just using buckets??
Ok, you need to raise the ppms a bit, are you using any pH down or anything like that?
yeah Im gonna try the 2 liter bottles. I have a 13gal res. I drained all my buckets this morning put some nice fresh water in there got my ppms up to 330 not including the tap ppm which is 170 so its a total of 500ppm do you think should get it higher than 330? The only reason I am keeping it that low is cause of what looks like slight tip burn (picture 1)
For now keep it where it is at, you don't want to add to much yet, start slowly and slowly increase.... I would use around 3 2 liter bottles at first, you want to put them in there right away;l caused if the temps are warm those bottles won't last long the first time you put them in there........ when you get them at the desired temp, they will last a little longer.