Looks more like calcium and magnesium tbh and likely just under fed. Are they on a constant drip, or cycles? Are you using tap water? Six weeks from when you flipped the light or from when you saw the first flowers?I don’t know what’s coming out the bottom as I don’t have a ec pen. That’s why I have been conservative with the feed. Half strength is canna A & B at 2 mill per litre instead of the recommended 4 mil per litre. Just wondering with them being 6 weeks into flower maybe they are short of potassium and phosphorus
In today's economy a $10 vivosun will get you there for EC, for pH you need to spend big for electronic but cheap liquid drops also get the job done and will actually be more accurate over time as calibration and replacement bulbs are a bitch and $$$.And by EC pen we do not mean a 19.99 pen with a green color and a powder for calibration fluid.
We mean a good tool with the proper calibration fluid.
Bonus points of it has replaceable tips.
Blue labs
Apera.
Aqua master
6 weeks from light flip. I have been growing like this for last 5 years and never had a problem. I flushed about 4 days ago with qaurter strength feed and cal mag. But since then it seems to have gotten slightly worse. It’s on the canopy leaves only not on the sugar leaves or underneath.Looks more like calcium and magnesium tbh and likely just under fed. Are they on a constant drip, or cycles? Are you using tap water? Six weeks from when you flipped the light or from when you saw the first flowers?
Not to be a dick but growing hydro in coco you must have an EC pen. It's like a carpenter showing up to work without a hammer. Don't be that person. You are starting with an unnecessary handicap.
In today's economy a $10 vivosun will get you there for EC, for pH you need to spend big for electronic but cheap liquid drops also get the job done and will actually be more accurate over time as calibration and replacement bulbs are a bitch and $$$.
Flushed at 6 weeks into flower? Why on earth would you do that? At 6 weeks they are at full feed & max light. I'm thinking you should follow the instructions on the bottles..6 weeks from light flip. I have been growing like this for last 5 years and never had a problem. I flushed about 4 days ago with qaurter strength feed and cal mag. But since then it seems to have gotten slightly worse. It’s on the canopy leaves only not on the sugar leaves or underneath.
I thought it might have been a toxicity of some sort. It was one flush with quarter strength nutes and calmag. They are back on the proper feed now.Flushed at 6 weeks into flower? Why on earth would you do that? At 6 weeks they are at full feed & max light. I'm thinking you should follow the instructions on the bottles..
Not at half strength nutes you won't get toxicity I use this graph as a feed guide in flower. In veg I supplement mag with Epsom Salts 1 tsp/gal through veg then at about 2-3 weeks in flower when the demand for Ca goes up I switch to Cal/magI thought it might have been a toxicity of some sort. It was one flush with quarter strength nutes and calmag. They are back on the proper feed now.
So they are closer to week 4 of actual flowers. 5 years is a great stretch running blind, I'm assuming with different strains going half strength probably helps to keep EC and pH in check but I'm surprised you never got hungry ones before. You never answered my questions about constant drip, runoff, tap water etc and without EC and pH readings I can only guess at what's going on, because you want to rule out toxicity if that was on your mind.6 weeks from light flip. I have been growing like this for last 5 years and never had a problem. I flushed about 4 days ago with qaurter strength feed and cal mag. But since then it seems to have gotten slightly worse. It’s on the canopy leaves only not on the sugar leaves or underneath.
It’s not a constant drip it’s in a timer. It comes on about 5 times a day. There is some run off. Yes it’s tap water. They probably get about 2 litres a day over 5 feedsSo they are closer to week 4 of actual flowers. 5 years is a great stretch running blind, I'm assuming with different strains going half strength probably helps to keep EC and pH in check but I'm surprised you never got hungry ones before. You never answered my questions about constant drip, runoff, tap water etc and without EC and pH readings I can only guess at what's going on, because you want to rule out toxicity if that was on your mind.
From what you've said it sounds like they needed more food, not less. But if you then say they get watered 1 liter a day in 5 gallon containers with no runoff we're talking a whole different ballgame.
If they were mine I'd lean towards hunger as a diagnosis and feed them more, especially given they're in peak flower now.It’s not a constant drip it’s in a timer. It comes on about 5 times a day. There is some run off. Yes it’s tap water. They probably get about 2 litres a day over 5 feeds
They are under hps but it’s the mainly the ones near the intake fans so I would assume that is the coldest part not the hottest. It’s never happened before. If it was under nutes then should I go three quarters instead of half? Or go max strength?If they were mine I'd lean towards hunger as a diagnosis and feed them more, especially given they're in peak flower now.
Are they under an HPS light? Any chance those leaves are taking a beating in a hot spot with less airflow?
Start at 3/4 and see how it goes.They are under hps but it’s the mainly the ones near the intake fans so I would assume that is the coldest part not the hottest. It’s never happened before. If it was under nutes then should I go three quarters instead of half? Or go max strength?
So they are closer to week 4 of actual flowers. 5 years is a great stretch running blind, I'm assuming with different strains going half strength probably helps to keep EC and pH in check but I'm surprised you never got hungry ones before. You never answered my questions about constant drip, runoff, tap water etc and without EC and pH readings I can only guess at what's going on, because you want to rule out toxicity if that was on your mind.
From what you've said it sounds like they needed more food, not less. But if you then say they get watered 1 liter a day in 5 gallon containers with no runoff we're talking a whole different ballgame.
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