JMoney....best place for troubles is at the Infirmary, or Live help Thread-- we'll spot things faster there, though EoF and Brim gotcha pretty quick here! :thumbs:
...looking at the pics, I think there's at least a 3-way TARFU going on here--
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the soil pH (way to acidic) Fux Farms soils have been showing up a lot these days with serious pH issues,...even HF is now suspect,...very inconsistent! Some get okay bags, but many do not,...
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the tabs - I don't care what the makers say about the damn things being made for MJ seedlings...they are bad news for autos, period... at 14-6-6, slow release or not, that's way too hot for auto seedlings, especially with the roots surrounding them,...I have doubts even for photo' seedlings, frankly,... We've seen several cases with soil tabs come in, usually with nute burn,...
>> main symptoms look like K defc. to me, but the pale upper growth hints at others as well (early symptoms like that overlap with some other defc.'s), which are also compounded and muddied-up by the low pH; other possible locked-out nutrients include Mg, S, Ca, P... I see your pH readings from run-off testing-
oof! .... I've come to dislike this method because of the many sources of potential measurement error inherent in it, but it's given us the gist of the situation,... acidity is much too low, messing with nutrient uptake,...the tabs still continue to release stuff, but the plant isn't taking them up, so the proximity conc. levels are going up, making matters worse,...
...:check: so, first thing to fix is that pH!! ...the tabs are stuck in there, unfortunately,... Flushing with well mineralized water at the very least- (hard water, tap usually, that's been dechlorinated)-- the minerals, Ca and Mg
carbonates, are the pH buffers,.... pH up adjusters can be used too, to get that water pH up above 7.0 to around 8.0,... flush through at least 1.5-2x the volume of pot size, and take a reading again; in the final pour, include some Ca-Mg, and a very weak dose of nutes; flushing is a stressor itself, as you're basically water logging the soil, smothering the roots, but it's the lesser evil here-- you can speed draining by placing the pots on a small stack of news paper, or towels, with a couple paper towels directly under the pot, to facilitate capillary action, drawing out the excess water faster!....This is the fastest acting way to deal with the low soil pH,... other options get more tricky,... hydrated lime is right-now fast, unlike other things that are CaCO3 based (lime, oyster shells, dolomite- slowest of all), and getting them deep into the soil is more difficult... powdered stuff will penetrate the best, when mixed in with the water... these do not actually fully dissolve, but powders suspend and penetrate the best,... Hydrated lime is powerful stuff, and honestly, I've only used it when mixing in the soil before planting,... I'd have to ask some others about water suspension dosage, if you go this route,....I'd try the flushing first though,...
