Any Ideas?

rkymtnman

Well-Known Member
you'll need a microscope to see mites.

and you switched back to FF nutes right?

looks like Ca deficiency to me (rust spots)
 

tehcheese10

Active Member
Yeah you're right about that. Real high PPM source water could do that too even with 1/2 strength nutes.
Wish her uppers looked as good as her roots.
Yeah her roots look great to me.... PPM is at 278.

you'll need a microscope to see mites.

and you switched back to FF nutes right?

looks like Ca deficiency to me (rust spots)
Calcium deficiency is what I thought at first, which is why I am using Cal Mag (2.5ML per gallon)
Yes back on FF now.
Even if there is some nute burn I feel like there is more wrong going on here.

I have had spider mites in the past which were easy to see with the naked eye, the mites you are talking about are that much smaller?
 

MustGro

Well-Known Member
PPM of 278 isn't gonna burn her so that's not it. You say Cal Mag; what brand? I don't know what difference it makes though as 2.5 ml/gal should be enough for a photoperiod plant so lots for an auto.
Temps; what are your solution temps and what's your change-out schedule like. I doubt either are bad since your roots are good but looking for info. You get a chance to look through that link and see if any pics are close? I'd do it but it's a long link, but there's good info in it.
 

tehcheese10

Active Member
PPM of 278 isn't gonna burn her so that's not it. You say Cal Mag; what brand? I don't know what difference it makes though as 2.5 ml/gal should be enough for a photoperiod plant so lots for an auto.
Temps; what are your solution temps and what's your change-out schedule like. I doubt either are bad since your roots are good but looking for info. You get a chance to look through that link and see if any pics are close? I'd do it but it's a long link, but there's good info in it.
Cal Mag is Botanicare, worked well on my last grow. I got my 2.5ml/gal dosage from a youtube video of an autoflowering grow schedule. Dude seemed pretty legit and again it worked on my last grow.

Temp is around 70degress Fahrenheit. I live in Socal and my grow is inside my house so its always pretty cool. I will take a look at the link when I get a chance and report back.

What has me confused is that I had a similar problem on my last grow, and CalMag was the fix. Here is my last post Any ideas whats wrong? | Rollitup
 

MustGro

Well-Known Member
You had a PH of 6-6.5 in the first grow and dropped to 5.5-6 in this one right? That first grow get as burnt looking as this one or did it do better. It looks better in the pics but did it get worse?
 

tehcheese10

Active Member
You had a PH of 6-6.5 in the first grow and dropped to 5.5-6 in this one right? That first grow get as burnt looking as this one or did it do better. It looks better in the pics but did it get worse?
No my first grow I kept the ph between 5.5-6.0. I always had a small amount of nute burn but it turned out fine.
 

MustGro

Well-Known Member
No my first grow I kept the ph between 5.5-6.0. I always had a small amount of nute burn but it turned out fine.
Yeah I was kind of reaching for straws with that one. I had a thought last night about this post. Is it possible your plants are nutrient hungry? Distilled water and a PPM of 278 isn't much for nutes.
 

tehcheese10

Active Member
Yeah I was kind of reaching for straws with that one. I had a thought last night about this post. Is it possible your plants are nutrient hungry? Distilled water and a PPM of 278 isn't much for nutes.
Possibly, only thought as to why that isn't the case is I have been having this problem since around day 5 or 6. Also while the PPM is currently around 250, at the time of the flush I believe it was closer to 350.

I read through the link as well, at this point I am thinking it is due to PH fluctuations. I am not always the best at slowing introducing PH solution via PH balanced water. I tend to get lazy and add the PH directly to my tank....
 

Wastei

Well-Known Member
Hi everyone,

My autoflowering plant is about 9 days old and a few days ago I started to notice some of these spots. On a previous plant I had very similar spots and was able to fix it by lowering the PH and adding some CALMAG as I was told it was likely a calcium deficiency. I tried to do the same thing with this plant but have not seem similar results any ideas?

5.5-6.0 PH
20/4 light schedule
1/4 recommended nutes via Dyna-Grow
2.5ml per gallon of CALMAG

I just flushed my system yesterday, hoping to see some improvement.
Here's my two cents. There's no need to use "Calmag" with a complete plant food in hydro. I've been running Dyna Gro for years. Only reason to add "Calmag" is if you're growing in coir to combat the natural leaching of calcium and magnesium by the medium.

I would add Pro-tekt (potassium silicate) and a sterilizing agent like chlorine.

In Aeroponics and hydro in general you want to work to keep things sterile, remove any biofilm with a combination of using an oxidizer(chlorine, H2O2), and surfactants. I use potassium silicate and drip clean.

That's what I do in Aero. I plan to start to experimenting with chitosan oligosaccharide in the near future. It's a good alternative to an oxidizer on paper and I've seen good results using it.
 

tehcheese10

Active Member
Here's my two cents. There's no need to use "Calmag" with a complete plant food in hydro. I've been running Dyna Gro for years. Only reason to add "Calmag" is if you're growing in coir to combat the natural leaching of calcium and magnesium by the medium.

I would add Pro-tekt (potassium silicate) and a sterilizing agent like chlorine.

In Aeroponics and hydro in general you want to work to keep things sterile, remove any biofilm with a combination of using an oxidizer(chlorine, H2O2), and surfactants. I use potassium silicate and drip clean.

That's what I do in Aero. I plan to start to experimenting with chitosan oligosaccharide in the near future. It's a good alternative to an oxidizer on paper and I've seen good results using it.
So the Grow Big from Fox Farms has 2% Calcium and .5% magnesium. Whereas Calmag" has 3.2% and 1.2% respectively. So Grow Big will cover this?

I am going to give Pro-tekt a try as well as Drip Clean in the future.
 
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