Lighting and Bud Health:
The new Sanlight lamp is proving to be effective, but the buds on #2 have started to bleach. I reduced the lamp’s power back to 80% and positioned it at an angle above the filter. The plants are now receiving between 25,000 and 30,000 lux, measured with my phone. The bleaching is not too visible in photos because the hairs on the calyxes are still white, but it was too much light for them. This should no longer be an issue, though the height of the plants is becoming a concern as they have reached their maximum height.
Space and Setup Adjustments:
I finally received my additional lamp, allowing me to move the Cereal Milk plant to a different room. Now, only two Cookies plants are under 160W. Both plants look very healthy. Cookie #1 did not stretch as much as #2 and the Cereal Milk, so I elevated it slightly to achieve a uniform canopy.
Environmental Conditions:
Temperatures in Germany have increased, and since I have an open living space with the plants in the living room, they are affected by the outdoor weather as I keep the windows open. Thankfully, the humidity is now between 50% and 60%, which is acceptable given the temperatures.
Relocation Plans:
To better control the environment, I am planning to move the setup to the basement. I have a 9 square meter room with a window where I can set up. This will allow me to use my climate control unit effectively. The plants are currently doing well under the existing plan, but the past iron deficiency and slightly burnt leaf tips from when the lamp was at 100% are still visible.
Future Setup:
In the basement, I will set up the lamp in an 80x80 cm tent for the Sanlight. For the two 60x60 cm tents, I will use the Mars Hydro FC 1500-EVO, which is perfect for one plant per tent. With five weeks of vegetative growth and considering the amount of leaf trimming and stretch during flowering, I believe each plant could easily fill its tent.
Overall Status:
The plants are thriving under the current conditions and adjustments. They look healthy, and the relocation to the basement should provide a more stable environment for continued growth and optimal flowering.
Hey everyone, what do you think—do my plants have a phosphorus deficiency?
Two buds are turning a bit purple, and the lower leaves are easy to remove even though they are still green.
Photos are in my Grow diary.
Hello BussyBeeFarmer,
You got a nutrient lockout from nutrient salts builded up inside your soil. You give more then enough nutrients and everything the plant needs is there. But you need to water till 20% runoff to prevent nutrient salts building up and I would recommend to cut down your nutrients to 75% from whst you are giving now.
This should solve your problems and deficiencies buddy.
Happy Growing! 💚
@oldskoolkool, Thank you for your input! Yes, Top Max is PK. Since the plants are illuminated at night, they haven’t been below 22°C in the room for the past 2-3 weeks, even during "nighttime".
I just noticed a mutation on the plant and will update some pics later when I’m at home. Since the other two plants in the grow show no signs of phosphorus deficiency, I’m hoping it’s just a color change from some mother genetics. I haven’t found anything indicating that Cookies Gelato turns purple frequently.
I’m not too worried for now, though I’m not thrilled about seeing so many mutations in the RQS seeds. Maybe it’s something I’m doing? 😂😅
And thanks for the tip about the basement! I’ll make sure to keep them off the cold floor and maintain the temps.
It should be OK with the top max,top max is PK isn't it? It will more than likely be the light stress. I had it myself when I switched over to led,s because it wasn't warm enough.24 so increased to 28 and it stopped.I believe its mostly due to lack of radiant heat and the leaf surface temp.
Thank you, @James! I'm glad to hear you think they look spectacular. Your encouragement means a lot! 👌 I'll definitely keep pushing forward and continue to give these plants the best care possible. Stay tuned for more updates!