I need help identifying the deficiency on the lower leaves, looks like a combination of cal and mag ? Your opinions will be greatly appreciated. I was thinking of adding some calmag from the local grow store.
That’s not cal/mag at all it’s phosphorus/potassium burn plants of that size shouldn’t be getting any nutes yet. The burn isn’t severe but it is definitely not a cal/mag issue
Imo it's a cal/mag for sure. If you don't have any on hand, you can use some Epsom salt or even a small amount of molasses (1/2 tsp./gal.).. Calimagic is what I use, and I haven't had an issue since using it.
@JUNGLE_B4RNS, Hey man, they are running on autopots connected to a reservoir, but I open the tap only when the pots are all very light weight, not dry but dry enough so that enough oxygen gets to the roots. Once the plants are bigger I will open the taps so that their autopot regulators allow the plants to drink as much or as little as they want.
I thought I saved the nutes, but it seems that I did not, I use EHG 3 part veg/micro/bloom at 1/1/1 ratio with ec 1.5 and ph 5.8-6.3, it start off at 5.8 and within a day or 3 it hits 6, by that time the reservoir is empty and I refill.
@Gropassion, ok... now I can tell you’re overfeeding your plants.
Do you see the dark and black rust on your leaves ? It’s Mag excess , and when they’re is too much Mag the plant can’t absorb Cal , creating those brown rusty spots.
First , check the EC of your media , might be way too high. You should feed them every 3 watering, following a Feed Water Water Water Feed W W W F ... schedule
