Pro mix HP feed and water schedule

Okay friends please help me out, I've tried to research on my own but either the advice has too much jargon for the newbie that I am or it's not advice tailored to my grow.

Details To know...
Mars hydro LED
Pro-mix HP medium mixed with 30% to 40% worm castings (most have suggested that's a bit much...)
Using a 3-1-3 nute (iguana juice, switching to bloom at flowering stage)

Packaging says mix 4 ml per liter per so I do about 14-15 per gallon but the more I read the more I hear people say go ahead and half that.

Temp is 75-80 lights on, 66ish lights off with a 18-6 light schedule
Humidity is around 50%
I'm growing autos (I know I know, I've chosen a tough road)

This is my first grow, there is a ton of advice out there saying don't over water so at first I watered so little that I was clearing stressing the plants. I then upped to water every other day schedule, the 4th day watering with nutes, I then saw clear signs of over watering so switched to every 3 days but now with nutes in water every time.

So my question is, when using pro mix hp how often do you water? Do you include nutes in your watering every time?

Do you test the ph of your mix before feeding, if so are you shooting for the 6.2 6.4?

I've seen printed schedules but I have a bit of trouble understanding them and finding one that applies to me.

I'll attach a pic of my healthiest plant and my least. I believe my least healthy one suffered Most From my early mistakes and have recovered a bit since but she ain't pretty.

Any advice you have around promix is appreciated. I'm exploring coco grow too but I'm really enjoying the pro mix hp.
 

Attachments

thumper60

Well-Known Member
I would of left the casting out are you trying to make it soil? feed every watering an get good runoff with HP. must be very mucky with all that casting in it.
 

myke

Well-Known Member
Promix is very light and airy by adding all that ewc youve turned it into mud,plants cant breathe.Adding salts ontop just made it worse.Im not sure what the answer is,but next time just go with straight up or coco.
 
Been growing with promix 40 plus yrs, Once i mixed in casting never again its not soil more like coco-hydro always feed with runoff use the casting as a tea.
I'm sorry, trying to understand. Are you saying that you used castings once and didn't like the results? And so now only use casting tea?
 

myke

Well-Known Member
If you have salt nutes mix some up around 1ec and feed to a huge runoff,then just treat like coco from then on.Should help
edit as above what thumper said.
 
Top