Bubble Ponics,
buy the totes at wal-mart, and the air pumps in the fish section.
I had to work out of town a weeks at a time, There were a few times I got back and there was no water in the totes, but the totes are reliable, and easy. I had 2 1/2 gallon totes.
You need good water to start with...
Looks like Fungus... IMO
Cold will make your plant purple/black but that would start out on the leaf tips
Your is the stems, and starting at the base of the leaf.
run your UVB light 12/12 same as the flower cycle.
position the light Vertical with the plant.
as mentioned keep the light close to the plant.
The UVB light can even touch the plant. some of the leaves will get a little burnt here and there. It's the price you pay for increasing trichrome...
Your lights are way to far away move it closer.
Your roots might be damaged.
If they are, you might have to prune them.
Or just let it ride for a little while see what she does.
try and rinse them off. Your not gonna get it all, alot of it gets in the buds where it's impossible to rinse out.
After you harvest you could try and soak your buds on the stick in a bath.
IMO- I wouldn't use anything in flower except water after the first 3-4 weeks.
Good Luck on Your Grow
3-4 weeks in veg with FF-OF
after that you should think about feeding.
Use the Bloom like the directions say or the Feeding schedule.
watch your leaves, if you plant looks good, your good.
IMO- your probably going to need a couple more nutrients, and a bottle of Cal/Mag
Good Luck on your Grow.
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I've got 3 400watt MH's in the Veg.
3 1000watt HPS in the Flower.
I also have 2 centrifugal exhaust blowers to keep it all cool, and A/C for the summer time.
If your gonna use HID's you just about need some sort of temp control method.
You got a lot of things going on.
what's your growing mediums pH?
IMO- Phosphorus Deficiency, Magnesium Deficiency, The really green foliage could be Potassium deficiency or Nitrogen toxicity.
IMO- you should of started with a smaller Hydro operation.
What is your water? well water? City tap water?
what's that 60 PPM in your water before you add anything to it?
What's the pH of your water with out nutrients?
You could get a RO system get your water down to 0 PPM
Don't add 250ml...
Right on about the Teas.
GH is really good for the price, compared to other Nutrients.
IMO- How much EXTRA to you pay for the Fox Farm Name? Probably a lot.
Don't get me wrong I have the FF line. I works good, but so does GH for a lot cheaper price.
When i first tried Hydro I bought a Big ass...