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Yellowing and rust spots on leaves?
sacredgeometrystarted grow question 3 years ago
I have yellowing and rust colored leaves in middle of all my plants. I am in 2 gallon pots, fox farm ocean forest soil. Currently feeding fox farm tiger bloom (2 tsp/gal), fox farm beastie bloomz (1/8 tsp/gal), fox farm big bloom (3 tsp/gal), calmag (1 tsp/gal) water ph 6-6.5
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m0useanswered grow question 3 years ago
Your Lights Temps and RH are all in check. This is leading me to think its a lockout in the medium from a buildup.
PH for soil is best between the ranges of 6.4-6.8 no need to go down to 6.0 in my experience.
Do you use an TDS pen to monitor the solutions concentration in EC?
This is a big tool that is almost always needed when using liquid nutrients.
this article goes a bit into it.
growdiaries.com/journal/what-is-electric-conductivity-ec-and-total-dissolved-solids-tds
My guess is you need to lower up on the feed as fox farm brand feeds heavy.
Best Of Luck!
GYOweedanswered grow question 3 years ago
Like robert said Use some pk boost start 1/4tsp/gal. Also smell your soil should not be rotten which can kill roots uptake if u use too much organics. Humic acids may help too.
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gottagrowsometimeanswered grow question 3 years ago
Defo not light burn just looked at your distance. That light isn't strong enough to cause light burn that bad from that far away pal. 100% potassium deficiency.
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Robertsanswered grow question 3 years ago
Pretty easy one. In your situation everyone missed your bulking in flowering. Which has a high demand for potassium, and phosphorus. Using small potters at that. I would measure some run off water for ph. When I have done root bound in small containers the ph likes to start drifting.
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Wicked_Stixanswered grow question 3 years ago
You're missing the grow big in your feed. The fox farms trio requires all 3 bottles for a complete nutrient
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