First DWC problems

[Imagine]

Problem: Spots on leaves. Trying to get this figured out before it gets too far along. These were freebie seeds I thought I wouldn't be to upset about loosing if things went south but I'm still pretty attached. Lol

Medium/grow method: DWC. Drain to waste. 10
Gallon tote filled to 1/2" below net pot holds 5 gal.

Feed: and supplements used: Mega Crop 2 part With hydroguard. Schedule for 5 gal in grams - week 1 1.75g part A 3.0g part B 150 ppm. Week 2 3.5g part A 5.5g part B 287 ppm. Week 3 4.75g part A 8.25g part B 411.5 ppm. 1 tbsp Hydroguard. PHed to 5.8-6.0

water source: RO 0 ppm

Strain/age: Phoenix Seeds big yield auto 17 days

light used: Mars Hydro sp3000 75% @ 36" 18/6

Climate: 77° day 69° night. 50-65% RH

Additional info:

 

[derek420colorado]

Problem: Spots on leaves. Trying to get this figured out before it gets too far along. These were freebie seeds I thought I wouldn't be to upset about loosing if things went south but I'm still pretty attached. LolView attachment 1302066View attachment 1302067View attachment 1302068View attachment 1302069

Medium/grow method: DWC. Drain to waste. 10
Gallon tote filled to 1/2" below net pot holds 5 gal.

Feed: and supplements used: Mega Crop 2 part With hydroguard. Schedule for 5 gal in grams - week 1 1.75g part A 3.0g part B 150 ppm. Week 2 3.5g part A 5.5g part B 287 ppm. Week 3 4.75g part A 8.25g part B 411.5 ppm. 1 tbsp Hydroguard. PHed to 5.8-6.0

water source: RO 0 ppm

Strain/age: Phoenix Seeds big yield auto 17 days

light used: Mars Hydro sp3000 75% @ 36" 18/6

Climate: 77° day 69° night. 50-65% RH

Additional info:

Looks like you need some cal mag. Have you added any additional cal mag to your feed regimen?

 

[Imagine]

Looks like you need some cal mag. Have you added any additional cal mag to your feed regimen?

Haven't added anything additional except Hydroguard. Here's how the feed breaks down at the current feed amount. I'm not versed enough to know if these #s are enough or not.

 

[derek420colorado]

Get you some cal mag and add it with your next feeding

 

[BII]

CALiMAGic (1-0-0) from General Hydroponics is popular cal-mag additive; and unlike many, is not (over)loaded with N, doesn't contain a lot of calcium nitrate.

 

[Mañ'O'Green]

You did not have enough Calcium in week 1 and week 2. You get enough in week 3. Calcium needs to fall between 80 - 100 mg/L or PPM/L .

Green Leaf derives its calcium from part B. and in 5 gallons of water you need a minimum of 8 g part B.

I am not tootally happy with all these numbers and this is a work in progress.

 

[BallsackSal]

This site is filled with this same question, I know I have asked about it several times. It happens to me regardless of how or how little much calcium and magnesium is in the nutrients. I hope you come back in a week or so and give an update.

 

[Imagine]

Thanks for all the help guys! I will definitely be doing more research on plant nutrition as I grow along (pun intended) but hopefully that will get me over the hump. I'll post the results in a few days.

 

[St. Tom]

Thanks for all the help guys! I will definitely be doing more research on plant nutrition as I grow along (pun intended) but hopefully that will get me over the hump. I'll post the results in a few days.

can you keep us updated bro on your progress also @Mañ'O'Green is very clued up and is such an asset to afn

 

[Heisenbeans]

Dynagro FTW