A little help please guys

Embassy1976 · Jun 28, 2025

Trying a grow again I tried a few years ago, it didn’t end very well.
Anyway starting off super easy with a couple of igrowcan, started one the start of June and one a week or so later initially just by the window then bought a spider farmer set up which is where they are now.
They’ve done pretty well up until now but the last four days they have got these discolouration, am I looking at too much light too much water etc or something a bit more sinister?.

Any help would be much appreciated

LoveGrowingIt · Jun 28, 2025

The temperature looks good. The humidity is high, though. I'd drop it down to below 60% and then ease it down to the low 50s over a few days. I don't think the problem is too much light, but knowing your light schedule would help. I think I see some signs that flowering might be starting. (Not sure, though.)

What soil are you using? How often do you water?

I've seen white spots like those before, but my brain isn't working well at the moment. I'm thinking mildew, maybe. Lowering the humidity would be the first thing to do to help with that. Healthy plants that age could take a VPD of 1.1 to 1.3.

Embassy1976 · Jun 28, 2025

LoveGrowingIt said:
The temperature looks good. The humidity is high, though. I'd drop it down to below 60% and then ease it down to the low 50s over a few days. I don't think the problem is too much light, but knowing your light schedule would help. I think I see some signs that flowering might be starting. (Not sure, though.)

What soil are you using? How often do you water?

I've seen white spots like those before, but my brain isn't working well at the moment. I'm thinking mildew, maybe. Lowering the humidity would be the first thing to do to help with that. Healthy plants that age could take a VPD of 1.1 to 1.3.

Thanks for the info, light schedule is 18/6 kit being used is
2025 Newest Version Spider Farmer® 70X70cm Complete Grow Tent Kit丨SF1000 301H EVO Full Spectrum LED Grow Light丨6'' Clip Fan丨4” Ventilation System with GGS Controller With App x 1

Light is on around 25%, soil is what came with the can as well as nutes.

This is what you get

2 autoflowering seeds of Royal Queen Seeds of your choice
1 germination plug
1.7l coco compost mix when expanded
High-quality organic cannabis nutrient

Watering every couple of days to moist

voltage · Jun 28, 2025

Septoria?

LoveGrowingIt · Jun 28, 2025

Embassy1976 said:
Light is on around 25%,

Should be okay.

Embassy1976 said:
soil is what came with the can as well as nutes.

This is what you get

2 autoflowering seeds of Royal Queen Seeds of your choice

1 germination plug

1.7l coco compost mix when expanded

High-quality organic cannabis nutrient

I shop RQS, but I haven't seen that before. It should be okay. The only problem is the pots don't look like they breathe or release moisture. Most, but not all, growers use fabric pots for that reason. I use their soil plugs and have had good results with them.

Embassy1976 said:
Watering every couple of days to moist

Letting the soil dry is good for plants of that age. It causes them to grow deeper roots. They like it. Lifting the pot can give you an idea of when to water. Watching for wilting will, too.

Embassy1976 · Jun 28, 2025

Awesome, thank you.
The tins are perforated at the bottom and its in a few parts so it catches the run off, great design really

Embassy1976 · Jun 30, 2025

Managed to get humidity down to around 54% and haven’t watered. Still have some of those marks on the mid leaves but the new ones coming through don’t show any sign

Embassy1976 · Jun 30, 2025

voltage said:
Septoria?

Quite possibly, again I’m a total newb so don’t know much accept what I’ve read and the help I’ve had on here.
I’ve done some pruning and got rid of any affected leaves and will keep a close eye on it.
Thanks for the input

Embassy1976 · Jul 4, 2025

Just a little update, I’ve pulled watering right back and haven’t had any other signs of anything since I got rid of the affected leaves.
Humidity is also now under control with the help of a dehumidifier, it kept spiking before but can now get down to around 50c.
Thanks again

Embassy1976 · Jul 20, 2025

So this is where I’m at right now, the weather in the uk has been a bitch for keeping humidity down with it being up to 60 degrees quite often even with a dehumidifier and a extra fan and my exhaust fan on max.
It doesn’t seem to have affected things too much but always a worry, I’ve done a bit more pruning here and there and held back on the water.
The right hand plant was the first one I started and the one on the left was about a week or so later.
I’m at roughly 6/7 weeks from germination, how long do you think I’ve got to go with the first one?

Embassy1976 · Jul 25, 2025

How long do you think the first one has left anyone?

voltage · Jul 25, 2025

Embassy1976 said:
How long do you think the first one has left anyone?

~6 weeks

Oldchucky · Jul 25, 2025

I’ll guess a month! But that’s all it is! A guess! I think they could’ve used a little more light! Just two cents!

voltage · Jul 25, 2025

I'd start my next round of plants also.
if you havent already

Embassy1976 · Jul 25, 2025

Oldchucky said:
I’ll guess a month! But that’s all it is! A guess! I think they could’ve used a little more light! Just two cents!

From what I’ve read they do grow small, just a couple of Igrowcan I started to dip my toes back in.
Will be starting a proper grow once these are finished I think

Embassy1976 · Aug 24, 2025

Hey all, how do you think these are looking just about there?

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A little help please guys

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Embassy1976

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