Mag Deficiancy?

Just ordered some calmag :) Im going to flush with just water tonight and see it that makes a difference first just to make sure its not nut lock due to new feedings with nutrients

Hey friend, With the yellowing between the veins like this i usually first think magnesium...or light burn can do that too. I feel like if it were light irritation it would be showing a lot more signs. If you don't regularly use a calmag supplement i would say start. Once i did my leaves and plants got a lot happier. Even just adding it in once a week can be a helpful choice and usually prevent any deficiencies. I use the foxfarm calmag or greenbuzz, but really any kind will do. If you don't have access to much you can also use dolomite lime, or 1 teaspoon of epsom salt per gallon will work also(but it'll be only magnesium, not calcium). Good luck with the choosing. And happy growing. ✌️