I agree the way the leaves are brown and crispy on the edges, then yellow, then light green then green in the middle looks just like the progressed K deficiency. (Doesn't look like bleaching or N toxicity to me.) According to the Cannabis Encyclopedia for K Deficiency:
"1. Older leaves turn...
For me it's a battle between the Spectrum King SK600 and the Fluence SPYDRxPLUS since I'm not set on a specific area (I was impressed with Chomsky's grow over at icmag using the SPYDRxPLUS).
For your space it depends on many things, let's compare the basics:
LED +...
Awesome experimentation & documentation as usual! Thanks for all your work!
I found it interesting that the terpene "Limonene" which is usually described as "bright and sunny" & associated with feelings of happiness, was in higher concentration on the 95 CRI COB which is closer to the spectrum...
This is the one of the only Kessil H380 grow journals I can find... if you're still around Bob, please show us some final results of this grow! I'm curious to see how these lights performed!
Since this thread is titled Fluence I just thought I would post this link to a thread I'm subbed to on ICMag of a guy actually doing a grow journal using the new SPYDRx PLUS for anyone interested:
https://www.icmag.com/ic/showthread.php?t=318819
From what I understand, heat from HID lighting + the temperature of the room determines your leaf-surface temperature, which has an optimal range for photosynthesis.
Since you are switching from HID lighting (which radiates infrared heat to the canopy) to LED (little to no infrared heat), my...
He was talking about his water temperature, so 75F is way too high. (Because of low levels of dissolved oxygen and pathogens such as pythium's (root rot/slime's) preference for that temperature.)
From Just4Growers on ideal DWC water temperatures: "62-68°F (17-20°C). Above 72°F (21°C) and...
On Friday they were transplanted into 3 gallon fabric pots, today they the tips were curling downward (the dreaded claw) so I flushed about 2 gallons of de-chlorinated water through each one and then afterwards an additional 1 gallon w/ 1 Tablespoon/5 gallons EZ-Wet and 1 Tablespoon/Gallon...
They are in 2-quart square pots about 5" wide. Do you think any permanent damage is being done letting them get this root-bound?
In the future I will definitely leave more space for them to grow at the bottom since I see roots concentrated there and seem to be drying it out unevenly. I buried...
They are GG#4 clones that I transplanted to 2-qt square pots filled with E.B. Stone's Recipe 420 soil and 20% Grow Stones. Initial watering was de-chlorinated water with 1/4 tsp per gallon Superthrive. They have been vegging quickly in a tent in my air-conditioned room and are now teen size...