I don't use hydro but I don't think you're suppose to have more than 1200-1500 ppm. If it shoots up it's probably because you put in too much fert. You've got heat damage too.
Printable View
I don't use hydro but I don't think you're suppose to have more than 1200-1500 ppm. If it shoots up it's probably because you put in too much fert. You've got heat damage too.
If you'd really like a diagnosis that counts...fill-out the damn troubleshooting form. (as mentioned a few days ago) This game of back-n-forth is doing nothing to help your plants.
Looks like ph lockout and overfertilizing. But without the info you would provide in the troubleshooting form, (the link is in my signature) all previous guesses are...guesses. No, it's not heat stress.
I'd ditch the Superthrive if using a 3-part nutrient system. The stuff is crap anyway. And these days...it's real expensive crap. Superthrive Myths
I'd also stop spraying the already stressed plant with a product from the world's most expensive additive company until you get them back on track.
I agree with rusty. It IS a pH problem. You even answered your own question in your first post.
'Anywase, I did the trouble shoot on ph runoff water following stinky instruction....I would get 5.1 when in fact the ph water in my res. is 6.6 ...could this be the problem? Please HELP!!!!'
And like rusty said, fill out the troubleshooting form and everyone can get a better idea of what is CAUSING the pH lockout. Adding more calcium and magnesium will burn them at this point, not help.
sorry guy, i tried my best to answer this questions..
Your Equipment:
.1) Type and wattage of lights. 1000w HPS
.2) Distance from tops? 1.5 ft
.3) Reflector type? BAT WING -- I think
.4) Is there a consistent fresh air supply? YES
.5) Do you have an exhaust fan and a circulation fan? YES
.6) What are the bulb wattages, kelvin ratings, and schedule? 1000w
Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. FOXFARM SOIL
.8) Size of container. 3 GALLON
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings? NO
Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting? TAP WATER
11) Method of checking water ph. 24/7 NUTRIENT MONITOR COMBO METER
12) Method of adjusting water ph... GH pH ADJUSTER
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. .. FEED DAILY WITH GH 3PART
14) How often are you watering between feedings, and how much per watering? WHAT IS THE DIFFERENT WATERING AND FEEDINGS?
15) Any additives or tea's? SUPERTHRIVE, GROWTH EXCEL FOR FOLIAR SPRAY, B-52(USE IT ONCE OR TWICE), HYGROZYME
16) Are your ph levels stable, or do they fluctuate? FLUCTUATE
17) What is your ingoing water's ph? ...your runoff ph? 6.6 --> 5.1
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? YES - GROWTH EXCEL ..SPRAY DOING THE LIGHT ON..I HAVE LIGHT RUNNING 24HR
Your growroom:
19) Indoors or outdoors? INDOOR
20) What size of closet, room or hut? ROOM
21) What are the temps and humidity levels while lights are on? ...With lights off? 90-95 WITH LIGHT ON, 82-87 OFF
22) Have you seen signs of insects in the growroom? NO
Your strain:
23) What strain are you growing? GRAND DADDY
24) From seeds or clones? CLONES
25) Is this an autoflower strain? DONT KNOW
if it is a ph lock out how do i adjust it..thank you
__________________
I still think heat is a problem but now that there's more detail and I look at it closer, I think Rusty's right. I think the problem actually is the automated system or whatever you're using to pump in water and nutes. I doubt if that's necessary. Maybe flush with pH adjusted water and let the soil dry out. Just water by hand if possible. This is just a suggestion as I don't know how your system operates but I'm guessing it's getting too much stuff. It's nice to learn something new. Thanks for bringing this to the board.
Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting? TAP WATER
11) Method of checking water ph. 24/7 NUTRIENT MONITOR COMBO METER
12) Method of adjusting water ph... GH pH ADJUSTER
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule. .. FEED DAILY WITH GH 3PART
14) How often are you watering between feedings, and how much per watering? WHAT IS THE DIFFERENT WATERING AND FEEDINGS?
15) Any additives or tea's? SUPERTHRIVE, GROWTH EXCEL FOR FOLIAR SPRAY, B-52(USE IT ONCE OR TWICE), HYGROZYME
16) Are your ph levels stable, or do they fluctuate? FLUCTUATE
17) What is your ingoing water's ph? ...your runoff ph? 6.6 --> 5.1
18) Do you foliar feed? If so, with what, how often, and at what time do you spray? YES - GROWTH EXCEL ..SPRAY DOING THE LIGHT ON..I HAVE LIGHT RUNNING 24HR
Number10: Tap water may be too hard.
Number 13: You are feeding way too much for dirt and causing nutrients to be held in the dirt and causing an acidic over-fert.
You should only water when needed and feed every two or three waterings.
This is why you do the run-off test to check pH. Re read Stinky's sticky and you will see.
NOT A HEAT PROBLEM!!
um 90-95 lights on, is a problem and will affect your out come verry much so.;) tap water hardeness is out of the question. his ppm out of the tap is a 50 u lucky bastard.hardwater is 250 and above "personally i say more like a 300"
During the summer I'm fortunate if I can keep the ambient room temps down to 95. (outdoor shed, middle of the desert) There are techniques to compensate for the heat though. The plants harden-up quickly, and do just fine. Indica's do better than sativa's. Optimal...no. But not a major problem, either.
Feeding daily...? Watering is adding properly ph'd water without nutrients in it, to keep the plant hydrated between feedings. (only when necessary) Feeding is mixing-in the nutrients with the ph'd water. Usually once weekly per manufacturers instructions. A schedule is usually available online these days.
General Hydro Feeding Schedules
When you foliar feed, you are adding more nutrients, micro's and metals. Until you get a handle on what to add and why...I'd stop with the foliar stuff. The GH nutrients have all the nutrients and micro's you need for a healthy plant.
Learn the basics before trying to go pro. :thumbsup:
Hi guy - over the weekend i've been watering it with just tap water without adjusting the water pH...the pH water is at 7.6-8.2 ...i'm afraid to add anything or adjusting anything...all my plant is getting worser and worser...now since most agreed it was pH problem...should i adjust the pH of the water? UP or DOWN since the runoff is at 5.2? I stop feeding the nutrient already...
one thing i dont understand is i've been feeding it with the same schedule (daily) at the same amount of nutrients...200ml-200ml-200ml G.M.B in 25g rez. since i transfered into the soil ..a month later it grow a foot and half tall and it look so healthy..and then all suddenly i got this problem...