I don't know man, I have the same concern myself, you can check out my pics as well.... Yours still look okay with the burned tips....I wanted to have some advices on my Malawi grow.
We are at day 51 in the flowering stage (12/12).
I've been having a hard time figuring out feeding with that specific plant.
For a couple weeks, it has been showing slight yellowing from the top and burned leaf tips. Also, the tops are foxtailing quite a bit, which doesn't bother me, but I'm asking myself if its a genetic trait or a light stress/too much N issue.
Plant is grown organically in soil. I did feed 1/4 dose of activated silica during the stretch and I also started to give half doses of organic bloom booster weekly since the end of week 5.
Light is a SpiderFarmer SF2000 and its 20 inches away from the top. I read 610 PPFD at the top.
Temps during the day are around 24 celcius and RH 50%.
Her sisters (Panama and Killer A5 Haze) have none of these symptoms.
Overfeeding ?
Too much N ?
Light stress ?
PH ?
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