Cal/Mag or PH Problem ... HELP! (PICS)

[mello]

Well my poor girls have been moved around alot so they havn't been in the idealist of conditions. I believe the problem im having is either humidity/cal-mag/ph related. This past week they were all under a 75w fluorescent with about 30% humidity.

Currently humidity is around 60-70% and lights on 75-80 lights off ~65

They're under a single 1000w HPS on 18/6 cycle
All in their 5 gal flowering containers that contain - promix/ffof/bone/blood/lime/ewc/guano
Im using R/O water but am a little confused on how I should be supplementing cal/mag
My water is ph'd to 6.0 (pee yellow) and my runoff is coming out very orange! 5.0

If it matters the ph of my water coming out the r/o is about 5.0

strains are blue dream/strawberry haze/purp diesel/og kush

Hoping to flip these ladies in a week if i can situate everything by then.

 

[mello]

wow ... nobody got any input?

Today i have experience some minor light bleaching so i turned my light down to 600w instead of 1000w to let them adjust a little

still experience alot of dieing leafs however

 

[softyellowlight]

I don't think you want to use water that is distilled by the process of reverse osmosis. You can tell by the pH that it's fucking up your chemistry. Can you try switching to tap water? Also I would definitely not pH it to as low as 6.0 if you are already running acidic.

 

[RetroGrow]

PH low for soil. Recommend a PH meter, so you can be more precise.
Mix RO with tap water. Should straighten it out.

 

[mello]

I realized that i can't accurately measure my runoff with drops... lol

I'll try upping to the PH to 6.5? But can't really afford a ph pen right now so i'll try using 50/50 tap and r/o

 

[Epiphyte]

PH strips are cool just use them religiously and up the PH...it is way to low for soil...I water with 6.1 and 6.6 ph---my runoff is always about 6.3...
Your low ph has locked out some nutes and caused the burn...use plain water for a couple of waterings and maybe even have it 6.5 to 7 just to raise the ph more.
Peace
GL, Phyte

 

[dansbuds]

Why are you using RO in the first place ? is your water Hard ? If you could take a sample of your tap water to a grow shop they would prolly give you the PH & PPM / EC of your tap to see if its good for the plants or not . RO water takes every micro nute out of the water which is why in most cases calmag is needed as an additive . most city/ municiple tap water is great for plants . well water needs to be tested but rain water is the best .

i think your PH is off cuz of the levels your getting on the PH drops . most RO water should be very close to neutral 7.0 not 5.0 . this is where i think your troubles are . get your tap tested & we can go from there .

your plants look a little over watered too . do you let them dry out before watering again ? this could be part of your prob too .

good luck man .... you'll get it . I did LOL .
heres my thread about ph probs ..... https://www.icmag.com/ic/showthread.php?t=204061

 

[Mr. Greengenes]

Whatever the problem is, it would be solved with a repot.

 

[mello]

These problems have been going on for a number of weeks because i've had low humidity problems and been feeding them straight r/o water. Honestly i don't know why im using the r/o i thought it was better.

The pictures were taken after a 6 hours of lights off and they were just transplanted into 5 gal flower mix of bone/blood/ewc/guano/lime from 2 gal pots of happy frog and were watered kinda heavy during the transplant im going to wait another day or two and try to test the tap water in this time

thanks for all the help!

 

[Epiphyte]

The first post says ffof in a mix...this last one says happy frog first then into new mix...

Two words of advice..
1. Don't mix your own soil. Ratios never end up right unless you have experimented. I have used the recommended mixes here and just watered with plain water and still burn the shit/ have weird stuff happen to my plants....also, soil mixing is awesome but from my experience, it takes experience then it become second nature.
2. Don't use happy frog on its own...just cut it down and mix it well with some promix or sunshine..Happy frog has a low PH and a high PPM..it is a good soil additive but it is very limiting to an indoor grower on its own, imo
Good Luck
Phyte

 

[Epiphyte]

Also, just potting those girls in fox farm ocean forest right out of the bag and using plain water would help...
If you haven't flipped, then repot into a trusted mix...about two days later prune those ladies up and bush them out...I'd cut most in half..at first i thought they were in early flower...you never want to throw ladies in that big...so, cut back drastically with the combo of repotting in ffof, and veg for 1.5 to 2 weeks and you should have a revived plant which will make buds...buds, to a large degree, are all in the prune.
Peace

 

[BudMasterzero]

Shit first like others say, get your tap water tested for ph and ppm.

I run dwc with tap water that is bubbled for 24hrs. It is around 6.8 ph and 170 ppm out of the tap before being treated. I always had mag cal issues which, well like most, pissed me off. To COMBAT this I suggest foiler feeding. I have 2 types of cal/ mag solutions

1 is Cal/mag from Pure Blend, which isn't bad just mix a gallon of water with 3-4 ml of cal/mag and spray once a day.

The other one I use is Seacal and SeaMag from humboldts own. Same thing pretty much 1 gallon of water with some seacal and SeaMag in there (their website has directions).

Either way using a spray to help alleviate problems is worth it in this case. It takes a bit but you should see in new growth no more spots n such.

 

[Zen Master]

is your cal mag cloudy? is it Botanicare Cal/Mag? if so it should be clear as apple juice and you can read a newspaper thru the bottom of a shotglass full. Mine was 'bad' so I switched brands.

I switched to Technaflora MagiCal and like it.

but besides the Cal/Mag issue. have you checked for root aphids?

also R/O water should come out at 7.0 pH, the fact yours is a whole point lower tells me something is wrong, when did you change out your R/O filters last?

 

[mello]

I had a feeling the other day my cal mag was bad and when i checked it was indeed 'cloudy'

I visually checked for aphids when i transplanted and didn't see any (they are bug free)

The R/O filter is fairly new ( past 6 months ) so i doubt the filters are bad?

The soil mix that im using is philthys soil mix.. sorry should of been more clear on this. I know he said he used it for both veg/bloom but it was burning my plants in veg so i transplanted into 2gal containers of straight happy frog

half bail of promix bx
1 bag fox farm ocean forest
1 cup miracle grow bone meal
1 cup miracle grow blood meal
1 cup dolomite lime
1 cup earth worm casings

Currently the ladies are looking much better, lots of new healthy growth coming out.

Humidity ~70%
Temp 68 @ Lights off 77 @ Lights on
Currently on 18/6 Cycle
1000w digital ballast currently dimmed to 600w ( Had a small light bleaching incident in a 6 x 7 room .. Will be turned up as they get use to it )

They havn't been watered for a few days so today was the first time watering them
I gave them straight tap water that had a ph of ~7.0
I ph down to about 6.5 and watered

I have a feeling that the reverse osmosis filter wasn't doing any good and my cal-mag was bad also. Still have yet to test the water as i've been extremely busy, planning on ordering a combo pen soon any recommendations? Thanks

 

[Epiphyte]

Do some research and see how others like using straight happy frog...I'd be careful because most of the time the nutrients are a little out of wack for cannabis..

Also, if you thought your soil was hot from the get go, then it probably wasn't the calmag product. Tip burns are not representative of deficiencies and if there is a mag deficiency with a tip burn, then it is probably too much calcium which can also lock out the mag..I guess this could be due to a bad calmag product...However, mixing soil takes practice and mixes work differently with different setups.

But, its good your plants are looking better. Silver Hawaiian post something in the infirmary recently...He had a mostly Happy From mix. His problems looked exactly like mine when I used a straight half HF and half promix soil mix...just be careful, if it isn't one problem with HF, it seems to be another.
Peace
Phyte