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- fine-ass '22 harvest!
-- dewds,....
Izzy, at 15" the lights are too close I believe, the edge curling on upper fans is a sign of such stress (is this a 5w Reflector?),... LED's seem to make different symptoms because the heat and point source intensity (like HID bulbs) isn't there, plus the nature of the light/wavelengths themselves is very different,... intensity isn't the only reason there's a certain minimum distance set, they way the light spreads out from different wavelength diodes is less and less even as the distance shortens, making for unbalanced coverage, and hot spots...
-- I know coco can be deceiving, but they look drier than they should be,.. Coco breaths like no other medium, and can handle higher moisture levels and not compromise gas exchange in root zone,... did they at any point become too dry, to the point of wilting? Coco can be a bitch to rehydrate evenly, hence the need for wetting agents like Coco-Wet,... also, such a dry out will fry roots, and cause shock and compromise uptake until they regrow,... Sure it's possible to overwater in coco too, but it's more difficult to do vs other media... The droops here looks moisture related to me, not the occasional phenomena of light/dark leaf drooping,.. this is more of a petiole movement thing, not the leaf fingers themselves curling down....
--- I can't see well in those pics Izzy, can you shoot clearer ones please? What I can tell from symptoms is more Mg defc., not Ca-- oddly! Ca will make distinct, often fine rusty spotting, true dead tissues,.. this looks more like interveinal color fade characteristic of Mg defc.... Also, coco's odd CEC properties call for more Ca and to a lesser degree, Mg, because it binds these ions up until sated, then it'll give-and-take more readily,... I see no pH readings on your feed solutions or in-pot,... what have they been? Nute's tend to make acidic soln.'s, so it's kinda weird that you need a pH down..?
Izzy, at 15" the lights are too close I believe, the edge curling on upper fans is a sign of such stress (is this a 5w Reflector?),... LED's seem to make different symptoms because the heat and point source intensity (like HID bulbs) isn't there, plus the nature of the light/wavelengths themselves is very different,... intensity isn't the only reason there's a certain minimum distance set, they way the light spreads out from different wavelength diodes is less and less even as the distance shortens, making for unbalanced coverage, and hot spots...
-- I know coco can be deceiving, but they look drier than they should be,.. Coco breaths like no other medium, and can handle higher moisture levels and not compromise gas exchange in root zone,... did they at any point become too dry, to the point of wilting? Coco can be a bitch to rehydrate evenly, hence the need for wetting agents like Coco-Wet,... also, such a dry out will fry roots, and cause shock and compromise uptake until they regrow,... Sure it's possible to overwater in coco too, but it's more difficult to do vs other media... The droops here looks moisture related to me, not the occasional phenomena of light/dark leaf drooping,.. this is more of a petiole movement thing, not the leaf fingers themselves curling down....
--- I can't see well in those pics Izzy, can you shoot clearer ones please? What I can tell from symptoms is more Mg defc., not Ca-- oddly! Ca will make distinct, often fine rusty spotting, true dead tissues,.. this looks more like interveinal color fade characteristic of Mg defc.... Also, coco's odd CEC properties call for more Ca and to a lesser degree, Mg, because it binds these ions up until sated, then it'll give-and-take more readily,... I see no pH readings on your feed solutions or in-pot,... what have they been? Nute's tend to make acidic soln.'s, so it's kinda weird that you need a pH down..?