G
Greenshark
- 83
- 18
Thanks for the reply :) I was hoping and guessing it would be that but I had so many people tell me you couldn't fill a 23 litre pot. What's helped as well is the 18-6. They were on 24 hour light for 7 weeks and I was foliage feeding as well and that could have bleached the roots. That doesn't explain the tip burn though.They are simply root bound. They have been in too small a pot for too long. Was just at an outdoor grow where the person was re-potting because of the same symptom and situation with smart pots that were too small. If you have not been over watering then your plants are probably just out of room.
Dee
the roots on top are from your plug you grew them in,my clones do this every time i use the plugs,you will be adding medium and thinking your stuff is just washing off,while in turn the plant is growing out of the pot,thing about root bound is that when it is,the little feeder roots are all that will grow,that ball is still there,and roots have firmed up were you just cant dip in water and help get the mess apart,no my question to you is,i thought them smart pots air pruned the roots,do they not?
you didnt mention nutrients use,im asuming your ready to flip,you gonna have massive plants after stretch,but me i still feed n for first 2 weeks while stretch going then focus more on p and k side of values,during that 2 weeks i also run my MH bulb then when i change bulbs i change feed,,anyway hope you got a full size room to grow um,i really would like to see you do so,im restricted to a 2x4x6 tent right now,so 1 gal pots and max after stretch im at 2 1/2 foot tall at harvest hahah,so i have to grow more,if you do decide to give a bit more nitrogen dont go overboard,then you will lock something else out,they look healthy to me,that slight yellow will clear up,you gonna put them in the dark for 48 hrs before flip? if so when them lights come back on all your top new growth will look like that,at least mine do,after a few days they straighten up,good luck sorry couldnt help just saying how i do it
have you checked the hanna scale for that stage growth? seems a plant at that stage should be around 750 ppm,not sure been a while since i eye balled the chart,might just be your problem friendI shouldn't have used the word ' bound ' really as they do air prune. I just think I have that much root mass that the root to coco mass is overly in favour of roots. Also, the plant in picture is the only plant with the plug showing. On the other plants the plug is further in and the roots are still coming out the top and travelling along horizontaly. Another thing that's getting me thinking it's the root mass is the fact that one plant had to be repotted about 3 weeks In to veg and this didn't go very well ( everything that could have gone wrong, did. I ended up just putting the root ball in. ) . This stressed her for a good few weeks so she is smaller than the rest and she shows very little signs of it because her roots are a few weeks behind the others in terms of mass.
I'm using plagron A+B @ roughly 1.2ml per litre and a tiny bit of katana roots. My tap water ppm comes out at 250 ppm and my total feed going in is 550 ppm ( 0.8 ec ) still I'm getting tip burn and I've tried everything else so I'm stumped.
They are currently under 5 600w hps lights and they were on a 24 hour light schedule for the first 7 weeks of their life and the last 4 days they been on 18/6 and the new growth is deffo coming through greener but that could be multitudes of things I've been trying. The plant looks very healthy but with completely pale yellow leaves and the new growth has yellow tips.
There will be 10 600w hps in flower and the room is more than big enough to flower these bad boys with room left :) they will get a lot bigger after tonight when they go in to their 39 litre smart pots. Going to veg for another 2 weeks then flip.
have you checked the hanna scale for that stage growth? seems a plant at that stage should be around 750 ppm,not sure been a while since i eye balled the chart,might just be your problem friend
had same problem living in the city,couldnt feed any hardly,got me 2 them 5 gal water bottles from wally world,hit that 1.75 water machine on the corner and took care that,but had to ph down afterwards from 6.9 to 6.5,all mine seem to like 6.5 on occasion i get a strain that like 6.8 for the sweet spotThese plants just don't seem to like too many nutes. They still have tip burn at 500 ppm. That's only really 250ppm of actual nutes as the rest is locked up in the tap water. Could yellow tips be a deficiency of some sort? I tried 700-800 ppm a while ago but they ended up getting locked out. 750 was going In and 1300 was coming back out after a week or so but they weren't this big then. They're gonna be some big plants in flower.
had same problem living in the city,couldnt feed any hardly,got me 2 them 5 gal water bottles from wally world,hit that 1.75 water machine on the corner and took care that,but had to ph down afterwards from 6.9 to 6.5,all mine seem to like 6.5 on occasion i get a strain that like 6.8 for the sweet spot
i dont ever run 24 hr lights,even a plant needs sleep and that when they feed the most,lights on they have to struggle to fend off that hot thing coming down on them,hahah you dont really see this in a indoor grow,but outside oh ya,they feed at night like a vampire lmao,if you grow veggies,feed them hour before dark and see if you can tell how happy and extra growth you got from the moon,,folk call me crazy until they try,were im at the day is 100 and night 85,by 1 oclock the plants are like melted wax,i have to go out to my container plants and cool off the totes with water,just about a quart of water,they come back around and just transpire,after i feed them a hour before dark,come back in morning and squash all over them plants and bees just a working,try it see the difrenceI'm in the uk mate and no one sells RO water over here, I would love that! I'm in coco so my ph has to be between 5.8-6.2. I transplanted 10 out the 13 last night in to 39 litre smart pots. All went ok and I'm hoping it cures my symptoms! The annoying thing is the new growth started to get much better and green when I gave them some darkness so I hope it wasn't just that as they went 7 weeks under 24 hour light.
They aren’t root bound. The EC is too low.
They aren’t getting enough Nutes. Nothing wrong with 24hr lights. Personal pref, the plants will stretch during lights off. It is one of the main reasons why people run them 24. New growth is frying because they don’t have enough nutes. I would consider .8 EC a maintenance dose under T5 mother plants for example. Not full bore 1k HPS 7 week’s in. Depending on your nute brand you could run them @ 3.0.
Even multiple feeds @ .8 EC is too little for this round of plants at their current size. At this size you have to be close to needing to water twice a day? Are you getting runoff? Are you measuring your runoff? I prefer using a bluelab soil PH meter. I’d take a bet ur below 5.8 by .4 minimum ph, that is where your mutated growth is probably coming from. I always test lower in coco. It has something to do with the manufacturers buffering agent. I’d actually bump up the ph to 6.4 for this turn and raise the EC by .2 every feeding till you get up to a min of 1.8 regardless of nute brand. I’d max at about 2.2- 2.4 to play it safe. Are you watering 2-3 gallons at a time or one gallon a couple of times a day? You need to not let coco dry out like a soil plant FYI. You should be hitting the plants with a super minimum of 10% runoff regardless. That is with good “high end” nutes. Salt based ones I’d be doing 25% runoff minimum. I don’t know what your nute brand and varietiesyou are running so I could only give general and stable info. I’m running 7 gallon short smart pots 2-3 gallons min per feeding, typically 3-4 @ 1.9 EC under 432 watts (8 lamp fixture) of T5 per plant. They will be pumped up to 2.6 by the time they hit flower in a couple of weeks.
It is like when you take cuttings and if you mess up and didn’t feed the rooted cutting a couple of days too late by accident. The edges burn an the new growth is yellow. You do it long enough the fan leaves will turn yellow eventually. That is what I’m seeing but with mature veg plants. You saying .8 EC with 7 plus week old veg plants is all I needed to know. Some varieties may be able t9 pull it off or in hydro which either is not the case,
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