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Yellowing and rust spots on leaves?
sacredgeometrystarted grow question 3y 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 3y 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 3y 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 3y 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 3y 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 3y 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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