Growing in rockwool problems

Jackrolls1

Active Member

• Jun 27, 2013

• #1

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​
  
  

 

hexthat

Well-Known Member

• Jun 27, 2013

• #2

im not sure you are giving them every element and do you check your pH? here are da pictures

View attachment 2716545View attachment 2716553View attachment 2716544View attachment 2716546View attachment 2716548View attachment 2716549View attachment 2716550View attachment 2716551View attachment 2716552View attachment 2716547

 

hexthat

Well-Known Member

• Jun 27, 2013

• #3

http://www.amazon.com/General-Hydro...id=1372393037&sr=1-1&keywords=floranova+bloom

at the bottom it has "Frequently Bought Together"
everything you need for $60

 

doniawon

Well-Known Member

• Jun 27, 2013

• #4

you overwatered. u arr correct in your assumption. all the deficiencies come from lack of oxygen to the root zone. aka drowning

 

BBbubblegum

Well-Known Member

• Jun 27, 2013

• #5

You're trying to hard. Go to soil and take it easy on the nutes. Those plants look like shit.

 

doniawon

Well-Known Member

• Jun 27, 2013

• #6

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.

 

doniawon

Well-Known Member

• Jun 27, 2013

• #7

system looks alright just overwatered.
jmo, but dump the rockwool and switch to grow rocks,

 

Jackrolls1

Active Member

• Jun 27, 2013

• #8

doniawon said:

system looks alright just overwatered.
jmo, but dump the rockwool and switch to grow rocks,

Click to expand...

I was thinking of doing this.

 

Jackrolls1

Active Member

• Jun 27, 2013

• #9

BBbubblegum said:

You're trying to hard. Go to soil and take it easy on the nutes. Those plants look like shit.

Click to expand...

This is my first time growing in rockwool. I've grown fine in hydroton. I think I will go back to it.

 

BBbubblegum

Well-Known Member

• Jun 27, 2013

• #10

Jackrolls1 said:

This is my first time growing in rockwool. I've grown fine in hydroton. I think I will go back to it.

Click to expand...

Why are you jumping into hydro? Stick with soil for the first 3 grows or so, then experiment with some clones in hydro.

 

S

stonamofs

Well-Known Member

• Jun 28, 2013

• #11

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