Desperately sick girl help PLS!

[Nelly Nelly]

Hi
AK59 auto, under a 240w quantum board. DWC. Temps 76-80° RH in the 50/60% range. Shes been looking really bad for a while, my first diagnosis was Ca deficiency so she was getting pretty much pure Calmag for a while but that didnt help. Then on another forum people said it looks like a potassium issue, so i put her back on base nute (Canna Aqua Flores 4-4-11) plus a bit of PK13/14, the ppm in the bucket was up to 800ppm last time i topped up but she is continuing to deteriorate rapidly and i think i might lose her if i dont figure out what the hell is wrong with her
So please if anyone thinks they can see what the issue is...id really appreciate it!
Thanks

 

[St. Tom]

Hi
AK59 auto, under a 240w quantum board. DWC. Temps 76-80° RH in the 50/60% range. Shes been looking really bad for a while, my first diagnosis was Ca deficiency so she was getting pretty much pure Calmag for a while but that didnt help. Then on another forum people said it looks like a potassium issue, so i put her back on base nute (Canna Aqua Flores 4-4-11) plus a bit of PK13/14, the ppm in the bucket was up to 800ppm last time i topped up but she is continuing to deteriorate rapidly and i think i might lose her if i dont figure out what the hell is wrong with her
So please if anyone thinks they can see what the issue is...id really appreciate it!
Thanks

is she in soil bro if so what brand the more information you add will get you better answers

 

[blue]

is she in soil bro if so what brand the more information you add will get you better answers

It's DWC Tom .. Hydro. I don't know anyone who can help offer hydro advise.

 

[JP1]

@Mañ'O'Green knows DWC

 

[Del boy]

Hi
AK59 auto, under a 240w quantum board. DWC. Temps 76-80° RH in the 50/60% range. Shes been looking really bad for a while, my first diagnosis was Ca deficiency so she was getting pretty much pure Calmag for a while but that didnt help. Then on another forum people said it looks like a potassium issue, so i put her back on base nute (Canna Aqua Flores 4-4-11) plus a bit of PK13/14, the ppm in the bucket was up to 800ppm last time i topped up but she is continuing to deteriorate rapidly and i think i might lose her if i dont figure out what the hell is wrong with her
So please if anyone thinks they can see what the issue is...id really appreciate it!
Thanks

Whats your PH ???

 

[Nelly Nelly]

Whats your PH ???

I let it swing between 5.7 - 6.3, normally its around 5.9/6.
Cheers

 

[orange wing]

Hi
AK59 auto, under a 240w quantum board. DWC. Temps 76-80° RH in the 50/60% range. Shes been looking really bad for a while, my first diagnosis was Ca deficiency so she was getting pretty much pure Calmag for a while but that didnt help. Then on another forum people said it looks like a potassium issue, so i put her back on base nute (Canna Aqua Flores 4-4-11) plus a bit of PK13/14, the ppm in the bucket was up to 800ppm last time i topped up but she is continuing to deteriorate rapidly and i think i might lose her if i dont figure out what the hell is wrong with her
So please if anyone thinks they can see what the issue is...id really appreciate it!
Thanks

U should be using canna aqua flores every feed my last auto didn't like no more than 600ppm that was in coco though continue using base nutes and u should be good also if your in europe check your water report if its hard water u wont need calmag a friend of mine grows in rdwc different to yours but he never uses calmag and changes he's res once a week he feeds 7 times a day when they get bigger keeps everything right for a week

 

[Del boy]

I let it swing between 5.7 - 6.3, normally its around 5.9/6.
Cheers

Hello is your ph pen a amazon one or a good one

 

[Nelly Nelly]

U should be using canna aqua flores every feed my last auto didn't like no more than 600ppm that was in coco though continue using base nutes and u should be good also if your in europe check your water report if its hard water u wont need calmag a friend of mine grows in rdwc different to yours but he never uses calmag and changes he's res once a week he feeds 7 times a day when they get bigger keeps everything right for a week

Thanks, ive done a few DWCs and sometimes ive been able to feed really heavily 1000ppm + i basically work on the idea that if it drops you can raise it until you find a sweet spot where it stays the same or drops slightly.

Hello is your ph pen a amazon one or a good one

Its a decent one Essentials im happy with it and i think its reliable.

 

[Mañ'O'Green]

@Nelly Nelly Welcome to AFN. First off don't panic we can fix this. The damaged leaves will not repair and the damage may look worse before we get it under control. Your nutrients have got out of balance and you may have had a rapid PH drop that you missed for a while. When the plants shift into flower for real, the roots exude substances to tell the microbes to produce more P-K. These exudates can cause a rapid PH drop to below 5.3 PH and if you are not watching for it it can cause you some issues. Your PPM may be too high but I need to know the source of your water and the starting PPM of the water only.

Are you running Botanicare HydroGuard, if not get some ASAP.

You need to understand Balanced nutrients. Read this:

Tutorial - A word on Nutrients

The proper use of “salt” based fertilizer to grow Auto Flowering Cannabis. Salts: Natural and man made any chemical compound formed from the reaction of an acid with a base, with all or part of the hydrogen of the acid replaced by a metal or other cation. Learning how to use salt based...

www.autoflower.org

From the looks of the plant you have locked out the K (Potassium) That can happen when you have too much nitrogen, You mentioned that you ran nearly straight Cal-Mag, Your Cal-mag is probably Calcium Nitrate which is very high in nitrogen and this is probably the cause of the leaf damage. That low PH from the root exudates can be involved here also.

Your plants will be fine Just get the balance back and maximum nutrients of 700 PPM not counting your water.