Hello everyone! First time poster but been lurking around for the past few months when I decided to do my first grow doing as much learning as possible. Great site!
So I’ll get to my point/problem.
Growing blueberry auto in
OF soil in a 3 gallon fabric pot. Running RO water ph’d to 6.4-6.7 for her whole life. Been feeding fox farm trio since maybe week 4-5 with calmag since I’m using RO. She is super bushy and buds are stacking up in my current week of 9 but she started showing spots of maybe a “rusty” color on her leaves. I keep researching symptoms and can’t seem to figure out what she wants. I feel it looks like calcium def. but then the more I look at pictures it also kind of looks like it could be phosphorus. I first tried adding a little more calmag per feeding but didn’t seem to fix it. So I kicked her a little more tiger bloom in the next feeding and again didn’t seem to cure it. I’ve been feeding every other watering and my PPM’s have been in the 800 range for the past 3 feedings, and have on a handful of occasions checked runoff water which has seemed to stay steady at a ph of 6.5.
If someone has an idea I’d certainly appreciate the help! She’s gonna make it to the finish line since there’s only a few weeks left but knowledage is power and I plan to start another grow shortly after this harvest and am trying to combat problems earlier then this has gotten.
Here’s a pic of a couple of leaves. And the whole plant. Many leaves have it from the top to the bottom. Again thanks and happy growing!
Sorry I cant seem to figure out how to rotate these pics on my phone.
So I’ll get to my point/problem.
Growing blueberry auto in
OF soil in a 3 gallon fabric pot. Running RO water ph’d to 6.4-6.7 for her whole life. Been feeding fox farm trio since maybe week 4-5 with calmag since I’m using RO. She is super bushy and buds are stacking up in my current week of 9 but she started showing spots of maybe a “rusty” color on her leaves. I keep researching symptoms and can’t seem to figure out what she wants. I feel it looks like calcium def. but then the more I look at pictures it also kind of looks like it could be phosphorus. I first tried adding a little more calmag per feeding but didn’t seem to fix it. So I kicked her a little more tiger bloom in the next feeding and again didn’t seem to cure it. I’ve been feeding every other watering and my PPM’s have been in the 800 range for the past 3 feedings, and have on a handful of occasions checked runoff water which has seemed to stay steady at a ph of 6.5.If someone has an idea I’d certainly appreciate the help! She’s gonna make it to the finish line since there’s only a few weeks left but knowledage is power and I plan to start another grow shortly after this harvest and am trying to combat problems earlier then this has gotten.
Here’s a pic of a couple of leaves. And the whole plant. Many leaves have it from the top to the bottom. Again thanks and happy growing!
Sorry I cant seem to figure out how to rotate these pics on my phone.
.. difference is, Ca is nearly immobile within the plant, can't be translocated form older lower leaves to newer growth, so it tends to show mid to uppers first and worst,.... P is mobile, but tapping of fans doesn't always draw from lowest leaves first.... 2nd plant is same for sure! 
