fox farms nute problem? or tapwater?

Growing 6 ak47extremes and 6 biancas and 2 pineapple express. 2 600 watt black dog led's. Soil grow 50/50 mix ff ocean forest and happy frog.. led company recommends temps @ 85 degrees .. my leaves look "thick" with yellow/orange tips.. some leaf twisting and curling.. bought ph meter and water is reading 8.0.. but I know ff soil is notoriously acidic.. really really looks like cal/mag or nute burn.. going to try and post pics.
Seedlings in week 3.

Pics from 4 weeks old

the water you are using is reading 8.0? Have you tested the runoff after you water it? How often do you water it? It's probably a magnesium deficiency. Pretty common for plants that size that have fucked up Ph. My advice is to flush your plant with water and find out what the PH is of the runoff. You need to get that number as close as you can to 6. You might not be able to this round of watering but that's all right. Don't spray anything on them and don't add nutes. Once you get your ph dialed in it will be smooth sailing.

well the watering has been tricky.. after they sprouted and got first leaves I transplanted to 10 gal containers.. didn't want to transplant to many times.. so at this moment I cant "water correctly" (10-20% runoff).. I have been watering "around" plant base about 15-20 ozs of water. im guessing avg size of plants is about 4 inches tall and 5-6 in wide today I mixed 2 qrts of soil from planters and poured about 20 ozs of water into container.. going to let sit then strain a few times then test ph of that water.. should give me soil ph, correct? this is my first grow and I kinda went for gold.. hence spending 5000$ on growlights.. lol.. honestly all plants are growing in exact same conditions and some.. mostly the biancas are doing great.. yes with the digital ph meter I bought I got a 8.0 reading... also considering light burn?? very powerful led's.. thankyou for replying.. there is so much inconsistency from site to site on Everything, it is really hard to get solid information... it to me does look like a mag def..

If you don't mind me asking - How close are your lights?

EDIT: Also, your containers are massive. When did you drop them in these "pots"?

no I absolutely welcome any comments or questions.. about the lights...
I have 2 blackdog phytomax 600's in a 40 sq ft grow room with 9.6" in ceiling height..
this is why I chose the ten gallon containers.. I have room to grow.. currently the lights are about 36" above tallest plant.. (about 1 in taller than the rest) recommended from manufacturer is 35 " height for vegetation.. also recommend keeping room around 85 degrees.. www.blackdogled.com.. anywho.. largest of plants are currently forming third nodes.. I put plants in those containers on 2/13/16.. the have grown to 4-5 times the size since put into these containers..

blacspiral said:

no I absolutely welcome any comments or questions.. about the lights...
I have 2 blackdog phytomax 600's in a 40 sq ft grow room with 9.6" in ceiling height..
this is why I chose the ten gallon containers.. I have room to grow.. currently the lights are about 36" above tallest plant.. (about 1 in taller than the rest) recommended from manufacturer is 35 " height for vegetation.. also recommend keeping room around 85 degrees.. www.blackdogled.com.. anywho.. largest of plants are currently forming third nodes.. I put plants in those containers on 2/13/16.. the have grown to 4-5 times the size since put into these containers..

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Sounds like the lights are at a good height. I'm going out on a limb - mostly because those plants look ok to me - and say that soon you will see some explosive growth. Those plants have spent the last 10 days building a massive root system I'm guessing. You didn't say what your lighting schedule is? Also, I'm assuming these are NOT autos, right?

85 is a little hot, that's probably why you see a slight curl on the leaves edges. Nothing real significant though. FWIW - as far as I know the type of lighting does not dictate what the plants like as far as temp.

The real issue here is in the lights way tooooo much white light

continue this grow with the current lights will result in your plants looking squat and unfufilled

mix in some red light(warm white(2700k) to prevent squat internodes later

ph in the soil...? no such thing as it changes eveytime the plants exacerbates take a nibble

water well ensure you have heaps on holes in them maids

good luck

my lighting schedule is 24 hrs... read some threads that say 24 is good and some say 18/6 as plants need a (time to rest).. the manufacturer says that the leds do not keep the surface temperature of the leaf high enough compared to hid's.. so a ten degree increase in room temp 85 degrees keeps the temps of plant at same temp 75 would with hids... as for the (white light) there is almost no white light being emitted.. it is a mix of red blue green and ultra violet diodes.. the lights are purple.. and from what I have read are THE absoluite best grow lights on the market period.. and great for all growing stages.. and from every other thread on the net I have read that red spectrum is bad for plants in vetg stage as it causes stretching.. hence the use of the 6500 k flouros to veg with.. like everybody does... no disrespect but questioning your knowledge of led grow systems.. not a cut down but seems that very very few people know anything about led grow systems.. I did months of research on lights before purchasing.. I would say if there is a problem with the lights it is that they are to intense for such young plants..

the first thing you will learn is everyones grow lights are "the best in the market".I see alot of great grows on this site...massive grows.Dont see many blackdogs...heh.

these really don't look to healthy to me

Resinhound said:

the first thing you will learn is everyones grow lights are "the best in the market".I see alot of great grows on this site...massive grows.Dont see many blackdogs...heh.

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I agree you don't.. except a few youtube videos of some comparison grows.. im guessing that is because most growers don't shell out 1800$ per light... only the kind and bml spyder compare to the blackdog and the kind led has a lot of misinformation on their website which leads me to believe they are trying to cover up some inadequacies of their systems.. BML spyders were my next choice but the lwarranty and guarantee by blackdog is just unbeatable.. they even give you a 90 day no questions asked guarantee on growing cannabis with their lights... so technically you could grow a whole crop and send it back.. they wouldn't offer that unless they were confident in their product..

I agree. these are not the same pics as originally posted. Looks like nute burn. You probably shouldn't even be feeding them yet. That soil looks rich. What PPM you sending in?

I honestly feel like it may just be a little nute burn from the ff happy frog or the ocean forest... but it sure looks like a cal mag def.. if I flush plants what should I flush with? demineralized water or distilled?

I am not I haven't fed at all... yes the others were week three these are week 4.. I couldn't get the week 4 to upload earlier.. I wanted to show the change in 7 days.. a lot.. lol I am a newbie but I am not just jumping in blind... I spent time... a lot of time.. now I just need the experience.. that's why these sites are so great.. thanks for all the replies..

I've seen blackdogs. They make a very good led. You should try and get your plants to temps under 80. That's when they are most happiest. Led lights won't burn your plants as bad as MH/HPS but you should still keep them cooler. That will definitely hurt you in flower. Plant is probably just a lil stressed because of the pot change and I still am guessing that the soil ph is just too acidic

Dont flush. Unnecessary. I agree with @Canninoobis , cool the room down a bit. Also, IMO you should pull the lights back some too - they sound awfully powerful. Also, IMO you should add a 4 hour dark period. Youre pushing them - HARD - at 24/0. I like 20/4..toe the line and save a few nickles on the electric. And if you want to get really fancy, adding a little foliar spray with DG Protekt will create a magical thing that would impress the most experienced growers. (Sry, cant say enough about DG Protekt - it really is magical)

sweet.. ok I am heading to my location.. going to turn heat down and exhaust up.. try and bring it down to 78.. I already have timer setup just wasn't sure if the 18/6 or 20/4 was necessary.. but will give it a try.. will post some more pics of the op after I get back..

well here are some more pics.. after further inspection I discovered a few things.. lights were about 31 in above plants as they have grown some.. so they were a little close.. also I believe I may have fungus gnats.. probably from overwatering with my massive containers.. which will only be "to big" for a little while.. I bought some "organic" fungus gnat spray.. still believe I have a mag deficiency.. I phd the water and after sitting for about 48 hrs it tested at 8.8 ... but after letting the water sit in a bucket with my soil for about 10 hours then straining through coffee filter my ph was 6.2....so thinking my soil is rather acidic.. so maybe liquid dolomite lime may be the best option? any opinions or advice will be considered and greatly appreciated.. thanks in advance