Age of plant: 7 weeks
-Method: FFOF/FFHF soil w/ perlite
-Vessels: 3 gallon smart pot
-Indoor or Outdoor: Indoor, 2x4 grow tent
-Light system: Mars Hydro TSW 2000. full spectrum led. set to 50% brightness
-Actual wattage draw of lights: draws 300W
-Current Light Schedule: 12/12
-Temps; 68-73F
-Humidity; 45-55%
-Ventilation system; fan blowing fresh air in and fan blowing fresh air out
-AC, Humidifier, De-humidifier: none
-Co2: no
-PH: between 6.1 bluelab pen
-Nutrients: Given 1tsp/gal cal mag on 10/30, 11/10. 1/2 tsp bloom &1/2 tsp grow mixed into 1 gallon water on 11/16.
Issue was present long before nutes were added. Noticed just before transplant from solo cup into final home, significantly worsening in the following weeks.
A few weeks ago it was recommended i adjust pH and add cal mag which I did, and that seemed to slow the spread for a few days but now it seems the ailment has spread even more rapidly than before and i cannot figure out the cause. Thought it was a cal mag deficiency or pH issue but since amending both the plant has remained unresponsive
I have a strain of Purple Kush growing in the same setup and it is healthy as a horse, it has gotten everything that the GDP has gotten except the cal mag troubleshooting.
They have been growing pretty tall so i was looking to switch to 12/12 and begin flowering but donot want to initiate if the GDP is in such a poor condition.
It has worked its way from the old fan leaves on the bottom all the way to the new ones and now it has begun to work its way through the secondary growth at the bottom. I have noted some reddish-purple stems belonging to many of the impacted leaves.
Please share whatever advice you can
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Here is a full pic for anyone interested
Soil ph needs to be between 6.3 and 6.8. Check your runoff and adjust watering to compensate. If its low ph water/feed to no higher then 6.8 and if its high adjust water no lower then 6.3. Im at work ill check in later if nobody can help. Some plants are more sensitive then others so could be why the other looks good. Start with that. Good luck
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To me it looks like a ph lock out 6.1 is prety low imo for soil id recommend 6.5 to 6.8 i say ph issue because I don’t see just 1 single problem it looks like a calmag and phosphorus issue which leads me to a lockout 1 deficiency shouldn’t look like multiple also how long has your plants been in soil I ask because FF soil only has enough nutrients in it for the first few weeks then you have to start adding afterwards and what type of nutes are you using also hetes a deficiency chart to help in the future
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Have you “flushed” using ff trio and FFOF soil need to flush week 4-5 in,looks maybe salt build up that is throwing ph off. ? Maybe ? Ppm of run and ph would help diagnose the problem
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@Poseidon1 @LiesGrows I just added some water w/ baking soda to the soil and after measuring the runoff it is now 6.6. What should i be doing next? flushing the plant completely and introducing nutrients again or wait a few days? I have the Fox Farms trio pack: Grow big, big bloom and tiger bloom, then i have the fox farms bush dr. cal mag solution.
Fox farms is very popular in my area…
@Kingkupa I have not. How would I go about doing that? Please forgive my ignorance i am a first time indoor grower
Id get some water 1 to 2 gallons ph it to the correct ph of 6.5 to 6.8 and flush the pot after flushing id wait a day and and then do a regular feeding of nutrients I would recommend keeping your plant in veg until you are able to correct the issue sending a sick plant into flower is asking for more problems as far as nutrients I can’t say much as I’ve never used fox farms nutes but id just follow the directions on the feed chart I believe they typically provide id recommend doing a half strength feeding tho as I know FF nutes run strong
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Here is a feeding chart remember use half of what it says on the chart
@bobbydylan , what sort of water are you using? Reason I ask, it looks as though it may be a chlorine excess wired with a potassium deficiency problem. Ph is a great starting point to check. But, if you’re using your local tap water, check to see how many ppm of chlorine is available in your water source. If necessary, fill your bottles of water a 1 day-1 1/2 days prior to use, to allow off gassing of chlorine/chloride/etc. before use.
Happy cultivating and may the florals be with you.
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Don’t worry about, never know tell your ask. Just to double check, your are in FF soil and feeding ff trio? I thinks that’s right and your in week 7. If all of that is true if you follow you Fox Farm Feeding schedule, you should have flushed by now. And if you have never watered to run off, probably salt build up. Depending on pot size I would run 10-12 gallons through your soil. Do it slowly don’t just pour, and flood it. 1/2 gallon ish at a time. Once you start you will get it. You need to clean all the excess out of soil. Another thing Water let it sit for a day or 2 if possible in sunlight, helps the water dechlorinate, and other stuff. Get a Ppm meter test your run off it will a very height # I would guess. Sorry a lot I’ll tag in my journal take a look, feel free to keep asking questions, best of luck
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When i do a flush…i use the ff sledgehammer. I follow the mix strength but after i use it, i let it sit for 20 min then run 6.5 ph’ed water untill runoff is close to water tds going in. Then immediately i run a full dose of nutrients, but still only at 1/2 strength, especially the ff line up. BUT i would not flush untill you know what your runoff tds is. If runoff ph/tds is in line, i dont see a reason to flush. Also you do need to flush according to the schedule.
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And always get 15 % or so runoff. Its a must when using nutrients
@Poseidon1 @LiesGrows @Kingkupa just flushed last night w pH’d water, the runoff was 6.8. I added a half serving of ff grow big and fed it this morning the pH of that runoff was 6.7 so fingers crossed things will improve
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What was your tds out before and after flush? For me the soil ph always tanks around flower time, thats why its important to get that runoff everytime. Also go by the soil ff nutrient chart. If you go off the bottle directions imo thats too much. Never more then 1/2 strength of the feeding schedule, unless u got some serious lighting then you can go past the 1/2 but stick with what you got. You MUST keep tract of your tds in and out so you know what the plant is eating. Good luck brother you got this
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thanks for the info man i do not currently own a tds meter but will have to invest in one
