Help! Problem with hydroponics

[MindRage420]

hey everyone, I have recently set up 2 *feminized photo period White Widow* in a mars hydro 3x3x7 tent, tsw2000, 8'' fan, 5gal dwc, flora series nutes, and this is my first time growing hydro.

over the past couple of days I've noticed some yellow/brown spots showing up on their leaves. plant A (left) is showing it bit more severe symptoms than B (right) tho they have both had the exact same mix of nutes and ph, which is making me think this may be a fungus.

Yesterday 4.6.20 I sprayed some "garden friendly fungicide" on both plants, while plant B seems to be doing better it didnt seam to have any effect on plant A so im not sure if its a fungus or not...

if anyone can point me in the right direction it would be greatly appreciated...


*****please note i did just double up on the nutes 3 days ago so im not sure if it has anything to do with shock from more nutrients?******

notes:

week 0-2 (3.20.20 - 04.04.20)

ppm:440
ph:5.5 -5.6
ec: 0.830
temp: 70.3f

hydroguard: 10ml
grow: 13ml
micro: 9ml
bloom: 8ml
calmag: 20ml


week 2-present (04.04.20 - present)

EC 1.700
ppm 850 (+-10)
ph 5.7 (+-0.1)

25ml grow
25ml bloom
25ml micro
25ml calmag
10ml hydroguard

 

[Listersmeghead]

Hiya mindrage, when I do hydro, I like my ph to be 5.9. The ideal range for the plant to pick up the nutes is 5.8 to 6.1.
Luckily mine rises naturally from 5.9 up to 6.2 in the days after a res change, so I just lower the ph back to 5.9.
Try raising your ph into the 5.8 to 6.1 range.

 

[Stoned Ape]

Any special reason u using veg and flowering nutes at the same time?

 

[BubbleBucketz]

Use this from now on.....Stop using bloom nutes for right now. Keep PH in that 5.9-6.1 range. That leave also appears to be really dark green. Possibly a sign of using too much Nitrogen and locking out other nutrients with that lower PH level. Remember, even when the problem is fixed, damaged leaves wont recover.

 

[MindRage420]

Thanks for all your help everyone.

I was using bloom because thats what the grow series instructions said, 1tsp of each bloom, grow, micro, per gal. So thats what i did for first bucket and brought my water from 0 to that 450 number in notes.

Youre suggesting using only the bloom nutes for when in flowering?

 

[MindRage420]

Any special reason u using veg and flowering nutes at the same time?

Thats what back of bottle said to do is all

 

[Stoned Ape]

Does seem strange bloom and veg nutes together. I have always used it separately. Possibly it's a mix where u increase bloom nutes during flowering and keep a base level veg.

 

[Northern Hydro]

hey everyone, I have recently set up 2 *feminized photo period White Widow* in a mars hydro 3x3x7 tent, tsw2000, 8'' fan, 5gal dwc, flora series nutes, and this is my first time growing hydro.

over the past couple of days I've noticed some yellow/brown spots showing up on their leaves. plant A (left) is showing it bit more severe symptoms than B (right) tho they have both had the exact same mix of nutes and ph, which is making me think this may be a fungus.

Yesterday 4.6.20 I sprayed some "garden friendly fungicide" on both plants, while plant B seems to be doing better it didnt seam to have any effect on plant A so im not sure if its a fungus or not...

if anyone can point me in the right direction it would be greatly appreciated...


*****please note i did just double up on the nutes 3 days ago so im not sure if it has anything to do with shock from more nutrients?******

notes:

week 0-2 (3.20.20 - 04.04.20)

ppm:440
ph:5.5 -5.6
ec: 0.830
temp: 70.3f

hydroguard: 10ml
grow: 13ml
micro: 9ml
bloom: 8ml
calmag: 20ml


week 2-present (04.04.20 - present)

EC 1.700
ppm 850 (+-10)
ph 5.7 (+-0.1)

25ml grow
25ml bloom
25ml micro
25ml calmag
10ml hydroguard

I'm looking at your water level and it appears wayyyyyyy tooooo high ???? That sight tube should only be like 3/4 up the bucket in veg, and even lower in flower ( root ball ) ..water level minimum 3-6 inches LOWER than your net pot ....you are drowning your plants ..your roots look like they are growing up around your net pot ..instead of down ...

 

[MindRage420]

Does seem strange bloom and veg nutes together. I have always used it separately. Possibly it's a mix where u increase bloom nutes during flowering and keep a base level veg.

Thats correct, according to the bottle anyway

 

[MindRage420]

I'm looking at your water level and it appears wayyyyyyy tooooo high ???? That sight tube should only be like 3/4 up the bucket in veg, and even lower in flower ( root ball ) ..water level minimum 3-6 inches LOWER than your net pot ....you are drowning your plants ..your roots look like they are growing up around your net pot ..instead of down ...

Yea I thought so too.. I will lower it, this is them now tho

 

[MindRage420]

Okay so I just got home and tested, after raising the pH before work this morning and just now getting home and checking the PPM for the plant on the left has reduced down to 700 so increasing the pH help it to finally eat and the one on the right is still at 850 so pH was still a bit too low I just gave it some more pH Up will check on them tomorrow to make sure the ppm are going down. The new growth doesn't seem to have the same yellow spots.

I can't completely change out the water until tomorrow night, my Reverse Osmosis System takes a couple hours to fill up these five gallon buckets and I just don't have the time tonight. For now I'm going to raise the pH on plant be on the right and see if it starts eating, plant B on the left has begun to eat

 

[Northern Hydro]

Roots looking better ..that sight tube almost gave me a panic attack ...the air stones
Bubbles should be just splashing the baskets ..the baskets should not be touching the water .

Looks great otherwise ! Good luck

 

[Northern Hydro]

And your air pump is in your tent , you must pump in cool, fresh air to your roots, not warm, recycled tent , 'moisty' air. Hahahah <~ thank you mr.Trudeau . Namaste!

 

[MindRage420]

And your air pump is in your tent , you must pump in cool, fresh air to your roots, not warm, recycled tent , 'moisty' air. Hahahah <~ thank you mr.Trudeau . Namaste!

yes I agree, however the air in my tent is cooler than the air around it. my tent is positive pressure, my fan is sucking in cold air. It is connected straight to the ac vent on my ceiling, when my ac turns on it pumps straight to the room. i have the thermostat of the house dialed in, so this is the coolest place for them.

per my notes the water temp is rarely over 70 that plus the hydro guard should take care of any water temp issues im assuming

 

[Northern Hydro]

Sounds good ! Give the plants a bit to recover and I would stop spraying them , with , anything .

And great advise above re: ph . I like usually run 5.8-6.0 veg ..5.9-6.1 bloom

good luck!

 

[MindRage420]

I FIGURED IT OUT!

**YOU DON'T NEED CAL MAG WITH GENERAL HYDROPONIC SOLUTION**
CalMag has 2% nitrogen, 3.2% calcium, 1.2% Mag and 0.1% iron...

Bloom-1.5% Mag
Micro- 5% Cal 0.1% Iron
Grow- 2% Nitrogen

I was double dosing on alot so was probably nitrogen toxic causing the dark leaves among other things...

Creating whole new buckets with NO cal-mag, bringing ppm to 300-400 and keeping hydro guard.. will keep you posted!
im used to soil growing with blurple LED and Fox Farm soil nutes so im used to always needing calmag but i guess i dont need it here

 

[1ne eye]

You still need cal / mag using led lights, your using way to much at 25 ml for 5 gal. Cut it back to around 5 ml, some strains like less and some like more.

 

[MindRage420]

You still need cal / mag using led lights, your using way to much at 25 ml for 5 gal. Cut it back to around 5 ml, some strains like less and some like more.

Well damn. I already made the buckets and planted...
300ppm 0.650ec ph 5.9 with freshly calibrated ph meter so... Dont wanna add calmag now.. Dont suppose it will hurt to wait 7 days for next water change to do calmag again, after all i did to it im sure it could use a light flushing of calmag for a week

Also Does anyone know if you're supposed to add micro before you add Cal Mag or do you have to add Cal Mag before you can add micro? Getting a lot of mixed answers on Google

 

[1ne eye]

I always add cal/mag first.