420 Magazine's Official Girl Scout Cookies Comparative Grow By HashGirl

[HashGirl]

Thanks, everyone. It was nice to spend the weekend with my sister. I've seen her during the pandemic but it's the first time I've spent the night at her place since 2019 so that was nice.

 

[HashGirl]

Good morning.

My tallest GSC is now 30" tall. The light is 13" away from the tallest cola. Should I raise it and if so, how much?

 

[InTheShed]

How does the top look and do you have a lux meter? Most of light distance (as with almost all of growing) is a matter of reading your plants.

I'm glad you had fun at your sister's, and welcome back!

 

[HashGirl]

How does the top look and do you have a lux meter? Most of light distance (as with almost all of growing) is a matter of reading your plants.

I'm glad you had fun at your sister's, and welcome back!

The top looks good. No sign of light burn. Mars Hydro says the plants should be 12 to 18 inches from the light.

I don't have a lux meter but I do have an app on my phone for this purpose called Photone. I just don't know how to use it yet.

 

[InTheShed]

Most phone apps aren't worth using, even to compare one spot in the tent with another. If the tops look okay with no signs of light stress then they're doing just fine!

 

[Trala]

Good morning Hash Girl

Welcome back

 

[Jon]

The top looks good. No sign of light burn. Mars Hydro says the plants should be 12 to 18 inches from the light.

I don't have a lux meter but I do have an app on my phone for this purpose called Photone. I just don't know how to use it yet.

Hey HG - I think I can help. I have the same app and it's way easy to use. Here's all you do:
1. Open app
2. Find the kind of light you have, ie, full spectrum, red/blue LED, MPH, etc.
3. Pay $5 to unlock the type of light you have, the app tells you how
4. Now you can use the app. To get an accurate reading you have to add a diffuser.
5. This is a fancy word for plain piece of white paper
6. Cut a strip that will loop around the top of the phone and cover the lenses front and back and tape in place.
7. You're ready to go! Select your light, hold phone horizontal to ground at whatever level you wish to measure. You can select par, or lux to measure with as well as some others. I measure in par cuz I find it easier to process than lux.

Hope that helps.

 

[HashGirl]

Hey HG - I think I can help. I have the same app and it's way easy to use. Here's all you do:
1. Open app
2. Find the kind of light you have, ie, full spectrum, red/blue LED, MPH, etc.
3. Pay $5 to unlock the type of light you have, the app tells you how
4. Now you can use the app. To get an accurate reading you have to add a diffuser.
5. This is a fancy word for plain piece of white paper
6. Cut a strip that will loop around the top of the phone and cover the lenses front and back and tape in place.
7. You're ready to go! Select your light, hold phone horizontal to ground at whatever level you wish to measure. You can select par, or lux to measure with as well as some others. I measure in par cuz I find it easier to process than lux.

Hope that helps.

Thank you, Jon. I will see what I can do with these instructions tomorrow.

 

[HashGirl]

Here are the photos of the girls today. They all grew about 3 inches from Friday to today.

GSC1 - 69 (+18) Days:

GSC2 - 70 (+18) Days:

GSC3 - 70 (+18) Days:

It's not very noticeable in this pic but GSC3 has some pinkish/purplish tones now.

GSC4 - 71 (+18) Days:

 

[InTheShed]

Looking good HG!

 

[HashGirl]

The Money Shot:

Felonious sent this photo to a friend yesterday and I was proclaimed a master gardener. Good thing he didn't see my Blueberry Auto, which doesn't look nearly as good.

​

BB - 21 (+38) Days:

 

[ProfessorFlora]

Looking great HG. Those ladies should fill out nicely.

 

[HashGirl]

Hey HG - I think I can help. I have the same app and it's way easy to use. Here's all you do:
1. Open app
2. Find the kind of light you have, ie, full spectrum, red/blue LED, MPH, etc.
3. Pay $5 to unlock the type of light you have, the app tells you how
4. Now you can use the app. To get an accurate reading you have to add a diffuser.
5. This is a fancy word for plain piece of white paper
6. Cut a strip that will loop around the top of the phone and cover the lenses front and back and tape in place.
7. You're ready to go! Select your light, hold phone horizontal to ground at whatever level you wish to measure. You can select par, or lux to measure with as well as some others. I measure in par cuz I find it easier to process than lux.

Hope that helps.

Good morning, Jon.

I used your instructions for the GSC tent and got the following readings:

DLI - 194.4
LUX - 196000
PPFD - >3000

Do you know what any of these numbers mean or whether they're good or not?

 

[Brett Blaze]

Good morning, Jon.

I used your instructions for the GSC tent and got the following readings:

DLI - 194.4
LUX - 196000
PPFD - >3000

Do you know what any of these numbers mean or whether they're good or not?

Something wrong with your readings. Max should be around DLI 30, LUX 60K, PPFD 1000. Your light does not have the ability to put out the numbers you listed.

 

[Jon]

Something wrong with your readings. Max should be around DLI 30, LUX 60K, PPFD 1000. Your light does not have the ability to put out the numbers you listed.

@HashGirl - @Brett Blaze is correct. In fact, a light does not exist that will give you that reading, except for the one that's 93,000,000 miles away. Lol. Only the natural sunlight setting in direct sun should give you that ppfd reading. In fact, that's exactly what direct sunlight reads if you test the "sunlight" setting, which should have been free. So it's working, you're just maybe on the wrong setting. By the way, ppfd is the same as par. Do you have the par charts that came with your light or can you reference them? Should be an easy search online if you don't have them handy. When you have the app working correctly with the right setting and the diffuser in place, the app should measure ppfd very close to those par charts. Mine was almost exactly right on. That way you're using the actual manufacturer's specs to test the accuracy of the app. What kind of light specifically are you using? If you have blurples use the "red/blue LED" setting. If you have a full spectrum LED, use the "full spectrum" setting. Etc. if you use MH or whatever. Hopefully that will help.

 

[InTheShed]

I'm in SoCal and the sun maxes out around 135,000 lux here, so those numbers can't be right.

 

[HashGirl]

@HashGirl - @Brett Blaze is correct. In fact, a light does not exist that will give you that reading, except for the one that's 93,000,000 miles away. Lol. Only the natural sunlight setting in direct sun should give you that ppfd reading. In fact, that's exactly what direct sunlight reads if you test the "sunlight" setting, which should have been free. So it's working, you're just maybe on the wrong setting. By the way, ppfd is the same as par. Do you have the par charts that came with your light or can you reference them? Should be an easy search online if you don't have them handy. When you have the app working correctly with the right setting and the diffuser in place, the app should measure ppfd very close to those par charts. Mine was almost exactly right on. That way you're using the actual manufacturer's specs to test the accuracy of the app. What kind of light specifically are you using? If you have blurples use the "red/blue LED" setting. If you have a full spectrum LED, use the "full spectrum" setting. Etc. if you use MH or whatever. Hopefully that will help.

Okay. I'll try again tomorrow. Lights are out now.

I have a Mars Hydro FC-3000 full spectrum light and that's the setting I thought I was using but maybe I hit the wrong button.

 

[Jon]

Okay. I'll try again tomorrow. Lights are out now.

I have a Mars Hydro FC-3000 full spectrum light and that's the setting I thought I was using but maybe I hit the wrong button.

Yep the MH FC3000 is full spectrum. Did you pay the $5 to unlock full spectrum LED?

 

[HashGirl]

Yep the MH FC3000 is full spectrum. Did you pay the $5 to unlock full spectrum LED?

I did except it was $8.92 not $5.

 

[InTheShed]

Probably because you paid in Loonies.