Advice on feeding

[Dank1231]

I have a total of (5) AK49 auto flowering with a 1500 watt LED light, grow tent, 2 clip fans, an ExHale CO2 bag, and soil medium containing FFOF.

It is the first time using FFOC so I was not aware that I was not supposed to feed them until later on. I definitely burnt them, stunted their growth and stressed them a bit as you can see in the picture. I have been watering them approx. 2x week with only water for the last 2-3 weeks. Another mistake I made was that I did not have a PH meter and was giving them water with a high pH level of around 8.0. Well, around 2 and a half weeks ago is when I started calculating my PH and balancing it while flushing out the extra nutes.

Now that it is finally starting to go a little better, should I continue to give them nothing but water? Or should I give them the Adv. Nutes again at this final stage.

 

[AngryBird]

Hi there.
No worries, the ladies have rewarded you with some nice flowers
So they are about 4-5 weeks old?
So yes start with some light feeding for flower/buds on the ladies.
Don't overdose the first time. Give less and slowly increase next time and so on.
You did a great saving.

 

[Dank1231]

Thanks so much for advice

 

[IGBG]

What nutrient line do you plan on using?

Whoops, I didn't see you were saying you would be using A/N. If you do decide to use nutrients I would stick to just using the micro and the bloom, but if you are using a cal/mag supplement I would change how much micro to use. Anyhow... FFOF has plenty of the micro nutrients to get you through an entire grow, so seeing you are in full bloom I would use 1/2 parts micro to 1 part bloom if you are not using a cal/mg supplement, but if you are using a cal/mg supplement I would just use 1/4 part micro to 1 part bloom, but start off by using a very, very small amount. So to start you could do something like 1/2 tsp micro, 1 tsp bloom per gallon, then pH that mix to 6.5, or if you are using cal/mag, use 1/4 tsp micro, 1 tsp bloom per gallon. Then if that works without causing any tip burning, etc, bump your feed up to something like 1 tsp micro, 2 tsp bloom per gallon if you are not using cal/mg or if you are using cal/mag, use 1/2 tsp micro, 2 tsp bloom.

I just wanted to add this...

If you are going to use FF soil products and you are just planning on starting your seedlings into your final pot, I would recommend doing something like this...

1. fill the bottom half of your pot with a mix of 25% perlite, 75% FFOF
2. then fill the top half with a mix of 25% perlite, 50% FFHF (happy frog), and 25% FFOF

And if you do it that way, you won't burn your seedling, but then once your seedling matures enough its root system will make its way into the straight FFOF part of the pot giving your now mature plant the nutrients it will be able to handle! And that should easily get you to the second week of flower if you are vegging for up to 4 weeks or if you are growing an auto with just having to use pH'ed water and maybe a constant cal/mg supplement if the strain you are growing needs it, but nothing more!

 

[Dank1231]

Wow, broken down like a true grower. Thank you.

I fed it a very small amount. I did feed it about what you recommended and did use Cal/mag, but still only very little bit. The only thing I added was big bud.

What you said does make alot of sense and I will do that on my next grow. Thanks for the advice and information.