Lighting TEST: 2Autocobs growing 2 autoflowers

[BmC76]

Update:

Things are looking good in the tent! Plant growth is accelerating now! From the plant color, looks like I need to up the nute a bit, will go from 600 ppms to 700. I'm getting excited now.Almost wish I'd used the bigger pots, but still, we'll see what a standard 2 gallon pot can do!

View attachment 738693

Your ladies are looking fantastic! All these beautiful looking plants made me go get some autoflowering beans, lol!

 

[pop22]

Thanks guys!

 

[pop22]

Update:

Did I mention how much I hate my water????.............. looks like they've been hit with a PH shift, plant to the right looks like it took it hard...... damn it! Hoping I can salvage her!

 

[slowandeasy]

Check your pH, if not that try adding more Calmag. BTW, the Airdomes make a huge difference for me. But I think I am going to actually put the Airpump on timers. I have so much going on that I hand water them, the Airdomes dry out the Coco way faster. I also notice a lot more vertical growth on my Airdome plants. Which actually is not ideal for some of my plants. Sour Stomper is stretching more than anticipated, and ALL of my plants with Airdomes on are way larger than without. I have a Sour Stomper that didn't have Airdome on right next to one that has had it on the whole time the size difference is crazy. I think limiting the Airdomes output a little would be a nice compromise.

 

[pop22]

The ph went UP..... I checked the res. This happens when I use more than 20% tap water mixed into my RO. My straight tap water KILLS cannabis....but not my veggies. had the water tested, etc. Back on pure RO again...... Happens every spring and summer. I've tried everything you can mane and the only fix is to use an RO filter. Ph went from 6.3 to 7.1!!! GRRRRRRRRRRR

Got fresh solution ph'd to 6.28. Should be fine now

Check your pH, if not that try adding more Calmag. BTW, the Airdomes make a huge difference for me. But I think I am going to actually put the Airpump on timers. I have so much going on that I hand water them, the Airdomes dry out the Coco way faster. I also notice a lot more vertical growth on my Airdome plants. Which actually is not ideal for some of my plants. Sour Stomper is stretching more than anticipated, and ALL of my plants with Airdomes on are way larger than without. I have a Sour Stomper that didn't have Airdome on right next to one that has had it on the whole time the size difference is crazy. I think limiting the Airdomes output a little would be a nice compromise.

 

[pop22]

I just started testing the idea that, when LED causes "cal/mag" deficiency 2 things are happening, adding MORE cal mag may make it worse as the calcium can cause nutrient lockout. I'm trying adding just more magnesium to see what happens, I've long suspected that its the mag thats being used up faster. I added epsom salts, 30 ppms above the 120 ppms of cal/mag.

 

[blue]

I just started testing the idea that, when LED causes "cal/mag" deficiency 2 things are happening, adding MORE cal mag may make it worse as the calcium can cause nutrient lockout. I'm trying adding just more magnesium to see what happens, I've long suspected that its the mag thats being used up faster. I added epsom salts, 30 ppms above the 120 ppms of cal/mag.

I need these results pops! .. I'm one click away from buying Canna Mono Calcium ... and i've got epsom salts in the cupboard!


Edit: i also wonder whether adding direct heat would solve the LED defs problem!?
(just a thought from something i heard mentioned by canna and DPtony on transpiration possibly being the problem)

 

[slowandeasy]

Vl

I just started testing the idea that, when LED causes "cal/mag" deficiency 2 things are happening, adding MORE cal mag may make it worse as the calcium can cause nutrient lockout. I'm trying adding just more magnesium to see what happens, I've long suspected that its the mag thats being used up faster. I added epsom salts, 30 ppms above the 120 ppms of cal/mag.

You may be right, one thing is for Sure. I just stepped down my Sour Blues for preflushing and with in 2 days I developed Cal def looking spots. If I reduce my Calmag I get issues Everytime. That being said my plants seem to look even better once I start adding Bud Candy ( liquid Mag basically). I have a feeling certain strains may not need as much Cal, and could be effected. My Sour Hounds were perfect with the high dose of Calmag, but both developed a little spotting during flower with same dose. Possibly causing lockout on 1 of them. I think Mag might be depleted faster than Cal, but even reduction of 5ml per 3gal of Calmag causes issues for me.

 

[pop22]

I saw that comment. I'm not convinced on that yet. I'm going to start taking leaf temps. Remember, all that light is also heat directed at the plant. I've not actually run into cal/mag deficit yet actually, I'm waiting to see how the photo periods under the QB light react when they go into flower. That's when the deficit is most commonly seen.

I need these results pops! .. I'm one click away from buying Canna Mono Calcium ... and i've got epsom salts in the cupboard!


Edit: i also wonder whether adding direct heat would solve the LED defs problem!?
(just a thought from something i heard mentioned by canna and DPtony on transpiration possibly being the problem)

 

[PapaEmeritus]

Nice thread, @pop22 . My first two autocobs were delivered about 20 minutes ago and I'll be running two plants under them as soon as my current grow finishes so I'm definitely subbed up to see how your ladies end up. Looks great so far!