Can you provide some info on your lighting? How much Calmag are you using?coco coir medium,
RO water Athena cal mag
Athena blended nutrients
They are definitely growing fast but this deficiency is showing on all 3 different strains I have going right now and can’t figure out to save my life
≈4mg camg per gallonAre you buffering your water for pH? What is the pH in and out?
So I always preface by saying I'm a first time grower so get confirmation from the old firm. But I would suggest that is way too much light for these little guys. At this stage I had similar power LEDs 30 inches away at closer to 30%. They should be getting somewhere around 300-350 PPFD. The only way to know is to test how's much light they are actually getting. If you have a recent iPhone download Photone and check how much they're getting but I'd be moving them back to 30". Too much light will drive the plant very hard photosynthetically and push it into deficiency.≈4mg camg per gallon
Spider farmer at 4000 at 50% approx 18” away from canopy
ph is around 5.7-5.9 goin in
I feel stupid for saying this but I haven’t buffered my water nor checked ph runoff can you elaborate?
Okay do you have any ideas on some things I should always check ?What you're seeing is signs of magnesium (Mg) deficiency. HOWEVER it doesn't always mean there isn't enough Mg, it could be a pH issue or another nutrient interfering with Mg uptake.
Check your pH, maybe add a little Cal/Mag next time you waterOkay do you have any ideas on some things I should always check ?
Because of that extra demand, I've been looking for soil additives with Mg in them, aside from dolomite. I'm giving some added alfalfa meal a try in my current grow.Check your pH, maybe add a little Cal/Mag next time you water
Still say need to sort the light out too. If you're trying to add Calmag but not correcting the over delivery of photons that is driving the demand you're chasing your tail to some extent.
How do you buffer coco ???Are you buffering your water for pH? What is the pH in and out?
I start with RO, add 3 ml/litre of Silica (I'm in a metric country sorry haha). Allow that to dissolve for at least half hour. Test pH, will be around 10. Use pH down to get down to 6-6.3. Then add Calmag at 2ml/litre. You could probably bring those down a bit and keep the ratios the same but these are the amounts that work for me. This will buffer your pH and stabilise it in the medium. The silica will increase the strength of your plant and protect against disease and give you massive thick trunks and branches and therefore amazing water supply.How do you buffer coco ???
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