What’s up with these leaves

Middle of week 4 veg and some of the leaves are getting these weird spots ...leaf stems are purple too not sure if that is part of the problem ..maybe a cal/mag deficient or toxicity. I’m growing in coco using RO water and floraflex nutrients veg 1/2 ...also using Epsom salt and 1.5 g/gal. Also trying something new this run pure calcium (disolvine chelated 10% calcium powder) at 1 g/gal ...using cobs from cobshop.net and also a dragon XL600 from scynce

Still Mg hungry even with the Epsom salt. Buy yourself some calimagic, use it at 2ml per gal.

Also I'm not sure if you know but, you have three things that going that will consume high levels of Mg. The cobs, coco, and ro all three create the need for more Mg.

Maybe it’s nutrient burn ?? I also used urbnatuaral with my last watering .. maybe the ppm’s were too high

macsnax said:

Also I'm not sure if you know but, you have three things that going that will consume high levels of Mg. The cobs, coco, and ro all three create the need for more Mg.

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Should I still be using Epsom ?

Osulax2131 said:

Should I still be using Epsom ?

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Drop the Epsom and go with a good calmag. Like I said you're fighting 3 Mg factors. Once you figure out how they're consuming nutes, you'll know exactly what they need.

Looks Hungry Give it some more Cal Mag

macsnax said:

Also I'm not sure if you know but, you have three things that going that will consume high levels of Mg. The cobs, coco, and ro all three create the need for more Mg.

Click to expand...

Dealing with similar issues right now posting everywhere to get help