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Overgrotho
Avoiding Too Much LIght in Flower with Co2-- PPFD/LUX QuestionI've read that cannabis maxes out at 1500 PPFD or 80,000 LUX even with CO2. If I have 720 Watts of white light LED or about 3200 PPFD in a 4x4 = way too much in the center, right? I should dim the center light by about 50% as I've done? To avoid diminished yield even with co2?Techniques. ScrOG
4 years ago
1
3
Solved
Overgrotho
How do they look?How is my grow looking? Some are stunted -- should I trash em and start over? Is 45k lux too much at this stage? My tie downs are good?Week 5
Other. General questions
4 years ago
2
Solved
Overgrotho
Super soil needs activation?There are plenty of nutrients in my supers soil. However I heard that the problem might be that the soil isnt "activated" is that logical? Thus need to add organic ferts? I am trying this, but I'm sure the super soil has months of nutes in it!Week 4
Leaves. Color - Yellow
4 years ago
1
Solved
Overgrotho
Nitrogen deficiency/Lockout? Add Veg top dressing?Yellowing lockout/deficiency is still here. Transplanted many into supersoil which def has plenty of nitrogen if roots are ready for it.... If I add veg fert next watering, do you recommend to use what I've got: Happy Frog brand top dressing 7-5-4? In Asia we dont have many, ok?Week 4
Leaves. Color - Yellow
4 years ago
1
Solved
Overgrotho
Yellow growth to be cut off?Should I continue to cut off yellow growth as it appears?Week 4
Leaves. Color - Yellow
4 years ago
1
Solved
Overgrotho
Pink Grow TipsPink grow tips is from overly moist substrate?Week 3
Leaves. Color - Red or pink
4 years ago
2
1
Solved
Overgrotho
pH/EC/Medium issuesI have turned off CO2 because the amount these tiny seedlings are using is so small that the CO2 in the room remains around 450 nevertheless. I can turn on CO2 as soon as needed however.
I am using pH paper strips to be sure. I bought some different light mix for seedlings.Week 2
Roots. Other
4 years ago
2
Solved
Overgrotho
I tested the pH of my mediums and they were around 7 so, which I thought is too high so I watered with a 5 pH and I think this has brought the medium down to closer, around 6.5. I also put some worm castings for light top feed. Good ideas? Medium at 7 maybe caused yellowing?Week 2
Feeding. Chemical composition
4 years ago
3
3
Solved
Overgrotho
Today, I switch a few over to Professor Bruce Bugbee's soil-less mix :
50% Vermiculite
50% Peat Moss
(& some gypsum and dolomite lime..)
However instead of using Vermiculite I put Perlite, like an idiot!😜
Should that be fine until ready to transplant to super soil in due course?Week 2
Feeding. Other
4 years ago
3
3
Solved
Overgrotho
Leaf curling down on all sides?Yesterday I moved all girls into a 50% perlite mix (other 50% is super/top soil, castings). The 2 on the bottom have leaves which are curling down on all sides (weird 3d leaf shape). I wonder what that indicates? Any hints, about what could be my problem based on this photo?Week 2
Plant. Wilting
4 years ago
1
1
Solved
Overgrotho
Nutrient lock out hot soil question - stunting starts on 3rd set of leaves always?I noticed that they always deteriorate when the third set of leaves are forming. If these are in fact stunted from the nutrient lock out due to hot soil, does it make sense that growth is vigorous until the 3rd set of leaves form?Week 2
Leaves. Other
4 years ago
1