Growing in rockwool problems

Jackrolls1

Active Member
Hey guys, Ive been having problems with my plants in veg.
I think i was over watering them so I haven't watered them in 2 days and the rockwool is still wet.
The plants are about a month old and still not showing roots from the 6in net pots.
Stems are very dark purple.
Showing very slow new growth. and old growth looks like its dying.
I have been foliar feeding everyday with this mix:

  • 1 tsp Miracle Gro all purpose plant food 24-8-16 (any water soluble plant food will work)
    1/4 tsp (1ml) Superthrive
    1/2 tsp (2ml) Dyna-Gro Pro-Tekt 0-0-3

    1/4 tsp Epsom salt
    1/4 tsp dish soap
    1/4 (1ml) Folic Acid I use Humboldt Nutrients FlavorFul but any brand will work
    1/4 (1ml) Humic Acid I use Humboldt Nutrients HumBolt but any brand will work
    1/4 (1ml) Enzyme I use Humboldt Nutrients ProZyme but any brand will work​


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you overwatered. u arr correct in your assumption. all the deficiencies come from lack of oxygen to the root zone. aka drowning
 
dump the miracle gro base nutes. npk values are wack as fuck. cycle your watering times around your rockwool. when your rw dries up to 20% of its water holding capacity, water again. as the plants and roots develope they can handle more watering cycles.
 
1. Rockwool lacks basic nutrients - i suggest growing in a better hydroponics medium or using organic based potting soil.
2. Look into growing compost cannabis - it takes time, but rotted fruits and veggies provide an excellent organic substrate.
3. Scratch the all purpose miracle grow - most miracle grow doesn't work well with some plants and cannabis is one of them.
4. Look into some Foxfarm Big Bloom and Grow Big - They've gotten much better results and are less likely to burn cannabis.

4 bits of advice for you - hope this helps :)
 
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