Indoor Growing Scrog

[FastPace]

Yeah just pre-soak it to 250. You can just add the Maxi Grow to the RO to make 350ppm or 0.7ec from day 4 or so by day 11 you want to be about 1.1ec.

Thanks a lot. Appreciate experienced knowledge. I’m going need your help when I start it

 

[Mongoose]

Yeah just pre-soak it to 250. You can just add the Maxi Grow to the RO to make 350ppm or 0.7ec from day 4 or so by day 11 you want to be about 1.1ec.

Terra Aquatic is the new name for General Hydroponics Maxi Grow etc, it's the stuff you want. This product also has Calcium and magnesium included so no need to add any extra calmag. When you see pistols switch to the Maxi Bloom and add an additional bllomer, something like Kool Bloom or Moster Bloom to reach your target EC/PPM.

Just run your lights 24/7 full blast, ph6 entire grow and keep your ec/ppm in range at the required times.

DOA, or 420: When I've had my lights near the canopy at previous grows, I've had short, thick and healthy stem growth. This at widely recommended ppfd and dli. I look at 420s plants near the end of stretch, and guess at light-to-canopy distance in the photos, and wonder if that distance, whatever it is, is important -- to get the stretch required. Any thoughts on this? Thank you!

 

[Mongoose]

DOA, or 420: When I've had my lights near the canopy at previous grows, I've had short, thick and healthy stem growth. This at widely recommended ppfd and dli. I look at 420s plants near the end of stretch, and guess at light-to-canopy distance in the photos, and wonder if that distance, whatever it is, is important -- to get the stretch required. Any thoughts on this? Thank you!

With respect to what 420 wrote much earlier in this thread: "I give my plants extra goodies but I honestly think they would do just as well with only the FloraNova Grow/Bloom. Fertigating 5-8 times a day will definitely help with that vigorous growth." ... I decided to just follow his recipe exactly -- for rockwool, nutes brand and ppms and pH through all the growth phases, to take those variables totally out of the equation. The only unknowns at this point are ppfd, dli, and light distance from canopy. If I lived next door I would be happily gift him Photone + diffuser, and some beers.

 

[FastPace]

Terra Aquatic is the new name for General Hydroponics Maxi Grow etc, it's the stuff you want. This product also has Calcium and magnesium included so no need to add any extra calmag. When you see pistols switch to the Maxi Bloom and add an additional bllomer, something like Kool Bloom or Moster Bloom to reach your target EC/PPM.

Just run your lights 24/7 full blast, ph6 entire grow and keep your ec/ppm in range at the required timesi

I can grow autoflower in the same room as photoperiod? And it would be better to get a one light per plant and what wattage would I need?

Thank you!

I use automated watering. Specifically, I'm pouring water on top of the blocks for increments of 10 seconds about 8 times a day, starting an hour after lights on ending an hour before lights off water shots once every 2-3 hours.
Grodan, the company that makes the rockwool cubes, hosts some documentation online that gives you instructions and formulas for how to calculate your ideal watering amounts. I started out by obsessing and calculating how many ML I'm giving per shot, but I've gotten a little more relaxed with it.
Here's some watering rules based on the Grodan documentation:

• During veg, you want short shots of water. If your plants are thirsty, add more shots instead of changing the shot size/duration
• During veg, you should aim for a little bit of runoff towards the middle/end of the day. Aim for 5%-10% of the block's volume as runoff
• During flower, you want long shots of water less often. You want to let the rockwool dry out a little more between waterings compared to veg
• During flower, you should be getting more runoff towards the middle/end of the day. Aim for 10%-25% of the block's volume as runoff.

Going over some of your other questions:

You can do either. If you get your watering automation locked down, you can get really big plants from tiny amounts of rockwool. This video is a good example of someone growing respectable sized plants in just 3 inch rockwool. My last grow was only using the 6x6 "hugo" blocks (unfortunately hadn't found the 420autoflower scrog method yet), I haven't harvested but my plants are just as big as when I was growing in 5Gal soil pots and I'm sure I could've gotten them bigger with a longer veg time.
View attachment 1721518View attachment 1721519

With my newest run, I'm trying to do just 2 plants instead of 8, I'm gonna see how big they can get by being in 6x6 blocks stacked on top of the 8x8 blocks.



This should work out fine. Some people argue that you don't need to soak the original germination 1.5" cube in nutrients, just regular water, but I don't think it hurts to give them some feed right away.
PH doesn't need to be 6.0 exactly, I've been ranging my PH from 5.5 to 6.0 without much issue, usually I start and soak with 5.5
You can stack your 6x6 block onto coco or another 6x6 block, I'd recommend waiting until you see roots coming out the bottom of the top block and "transplant" by stacking and letting the top block dry out for a day while the bottom block is nice and wet. Afterwards, depending on whether you can see rooting in the bottom block/substrate you might want to continue watering from the top block for a week before you switch to only watering the bottom block and letting the roots wick up what they need into the top block.

Timeline based on previous posts in this thread:

• Around day 16 after germination you want to stake the main top down to allow the lower branches to catch up in height
• Keep the main top pinned down for a couple of weeks, adjusting the stake as needed
• The original instruction is the flatten the plants out and scrog about 5-7 days after seeing the first preflower pistils. Since we're growing photos, I'm not sure that this timing is as critical here, just make sure your plant doesn't get too tall for your space before you flip, you want to end up with enough "preflower stretch time" for the lower nodes to be able to hit and fill out your scrog net

I've tried both without issue. According to Grodan, if you stick the tube into the rock wool, you want it to be emitting at a 0.5GPH flow or less, otherwise the water pressure will be too strong and "create channels in the rockwool". For watering on top of the cube, I think most of the people in this thread are using the FloraFlex FloraCaps which help redistribute water evenly when poured on top

Last note, for nutrients, I'd highly recommend CropSalts to anyone interested in new nutrients. I tried the GH Flora Trio for my first run, the feed chart had me running different ratios of their three bottles every week and I was constantly troubleshooting issues with my plants. I switched to CropSalts and I couldn't be happier. Same formula/ratio from seed to flower week 4, a different flower formula/ratio for flower week 4-8, and a third formula/ratio for the last weeks of flush. Also, my rez PH is a lot more stable compared to when I was using the GH flora trio. Super easy and has worked incredible for me in my first run with it

Oh, you are using FloraCaps. My guy showed these before. So you just top feed the whole time? I could grab them if they work good. I just need to buy a hose and water pump separate. How many GPHs do you use and what is the hose size?

 

[DOA]

I can grow autoflower in the same room as photoperiod? And it would be better to get a one light per plant and what wattage would I need?

Oh, you are using FloraCaps. My guy showed these before. So you just top feed the whole time? I could grab them if they work good. I just need to buy a hose and water pump separate. How many GPHs do you use and what is the hose size?

You can't grow autos and photos in the same tent unfortunately, this method is lights on 24/7 full blast till harvest, no rest.

 

[FastPace]

You can't grow autos and photos in the same tent unfortunately, this method is lights on 24/7 full blast till harvest, no rest.

Gotcha, thank you

Thank you!

I use automated watering. Specifically, I'm pouring water on top of the blocks for increments of 10 seconds about 8 times a day, starting an hour after lights on ending an hour before lights off water shots once every 2-3 hours.
Grodan, the company that makes the rockwool cubes, hosts some documentation online that gives you instructions and formulas for how to calculate your ideal watering amounts. I started out by obsessing and calculating how many ML I'm giving per shot, but I've gotten a little more relaxed with it.
Here's some watering rules based on the Grodan documentation:

• During veg, you want short shots of water. If your plants are thirsty, add more shots instead of changing the shot size/duration
• During veg, you should aim for a little bit of runoff towards the middle/end of the day. Aim for 5%-10% of the block's volume as runoff
• During flower, you want long shots of water less often. You want to let the rockwool dry out a little more between waterings compared to veg
• During flower, you should be getting more runoff towards the middle/end of the day. Aim for 10%-25% of the block's volume as runoff.

Going over some of your other questions:

You can do either. If you get your watering automation locked down, you can get really big plants from tiny amounts of rockwool. This video is a good example of someone growing respectable sized plants in just 3 inch rockwool. My last grow was only using the 6x6 "hugo" blocks (unfortunately hadn't found the 420autoflower scrog method yet), I haven't harvested but my plants are just as big as when I was growing in 5Gal soil pots and I'm sure I could've gotten them bigger with a longer veg time.
View attachment 1721518View attachment 1721519

With my newest run, I'm trying to do just 2 plants instead of 8, I'm gonna see how big they can get by being in 6x6 blocks stacked on top of the 8x8 blocks.



This should work out fine. Some people argue that you don't need to soak the original germination 1.5" cube in nutrients, just regular water, but I don't think it hurts to give them some feed right away.
PH doesn't need to be 6.0 exactly, I've been ranging my PH from 5.5 to 6.0 without much issue, usually I start and soak with 5.5
You can stack your 6x6 block onto coco or another 6x6 block, I'd recommend waiting until you see roots coming out the bottom of the top block and "transplant" by stacking and letting the top block dry out for a day while the bottom block is nice and wet. Afterwards, depending on whether you can see rooting in the bottom block/substrate you might want to continue watering from the top block for a week before you switch to only watering the bottom block and letting the roots wick up what they need into the top block.

Timeline based on previous posts in this thread:

• Around day 16 after germination you want to stake the main top down to allow the lower branches to catch up in height
• Keep the main top pinned down for a couple of weeks, adjusting the stake as needed
• The original instruction is the flatten the plants out and scrog about 5-7 days after seeing the first preflower pistils. Since we're growing photos, I'm not sure that this timing is as critical here, just make sure your plant doesn't get too tall for your space before you flip, you want to end up with enough "preflower stretch time" for the lower nodes to be able to hit and fill out your scrog net

I've tried both without issue. According to Grodan, if you stick the tube into the rock wool, you want it to be emitting at a 0.5GPH flow or less, otherwise the water pressure will be too strong and "create channels in the rockwool". For watering on top of the cube, I think most of the people in this thread are using the FloraFlex FloraCaps which help redistribute water evenly when poured on top

Last note, for nutrients, I'd highly recommend CropSalts to anyone interested in new nutrients. I tried the GH Flora Trio for my first run, the feed chart had me running different ratios of their three bottles every week and I was constantly troubleshooting issues with my plants. I switched to CropSalts and I couldn't be happier. Same formula/ratio from seed to flower week 4, a different flower formula/ratio for flower week 4-8, and a third formula/ratio for the last weeks of flush. Also, my rez PH is a lot more stable compared to when I was using the GH flora trio. Super easy and has worked incredible for me in my first run with it

So I could SCROG photoperiod on day 1 after a flip? I read that 420autoflower said in one of his posts “10 days after a flip”.

 

[BII]

You can't grow autos and photos in the same tent unfortunately, this method is lights on 24/7 full blast till harvest, no rest.

So photo plants that have been flipped to bloom can't grow well with 18-24 hour/day light? Photos in bloom phase need ≤12 hour/day of light?

 

[Drownomatic]

So photo plants that have been flipped to bloom can't grow well with 18-24 hour/day light? Photos in bloom phase need ≤12 hour/day of light?

During the dark period the protein Florigen builds up. This causes flowering in photo plants.

Most photo plants need at least 12 hours of darkness for this to build up to a level that triggers continuous flowering.

If a flowering photo plant gets too few hours of continuous rest it will 'reveg' or stop flowering and revert to vegetative growth.

 

[TristanTheDestroyer]

Tristan, my plants are 5 inches ( 2.5 cm ) from the light: 250 watt, set at 40%, so using 100 watts. 640 ppfd, 55 dli, running 24/7. As I think I mentioned, most of the literature recommends a bit less at this stage of growth for ppfd, and quite a bit less for dli -- in the 30s range. Plants seem to be fine so far though. ( The two strains do have different overall leaf appearances, but I'm assuming that's all that is. ) ( Also recommend Photone and their recommended cosine clamp-on diffuser. Photo of the diffuser below. )

Got it! Cheers Mongoose, that is pushing them hard! I'm replicating what you have your light set to, and I'm seeing some rapid growth now and the seedling is handling it well! So I'm pretty happy about that as all my past Auto grows have been slow to start. Cool thanks for that tip on the diffuser. I have the Photone App but not the quartz diffuser.. Definitely something I'd like to get my hands on soon! I do have some diffusion gels from my old theatre lighting days that I'm using, seems to go alright. Thanks for the solid advice my friend!

 

[KingRatt]

You can't grow autos and photos in the same tent unfortunately, this method is lights on 24/7 full blast till harvest, no rest.

Unless you grow the autos on 12/12