Cal-mag def??

I noticed today that most of my og's are developig some slightly lighter green/yellowing on their leaves. Its located between the veins on the leaves and is very minor but Im thinking I should pick up some cal-mag. I use well water that w
Is really high in calcium. Not sure about magnesium though. I didn't notice this with my last run at all and its not on any of the other strains Im running. Do og's have a tendency to be magnesium hungry?
Feeding H&G soil base, roots excel, dynagro protekt. I ran dynagro foliage pro last time so maybe the h&g is just lacking in micro nutrients? I just gave them all a good feeding today @ 400ppm (~7.5ml/gal A/B) I upped it a little from my last feeding which have all been around 350ppm all given at ph 6.3. Ive been mixing in a bit more r/o water which might cause me to add some cal-mag supplement. I usually do about 1/2-3/4 well water with the remaining 1/2-1/4 r/o (its a small tank so I can't give 100% r/o). I feed with every other watering.
Not too worried, just wanna catch it early if it is in fact a deficiency of some sort.

Lol why would I troll you? Thanks for the link and photo man much appreciated. Looks like Ill be ordering a bottle of cal-mag.

Naw I was thinking the same thing. If its not... It cant hurt to have a bottle of cal mag around either way.

KushyMcKush said:

Naw I was thinking the same thing. If its not... It cant hurt to have a bottle of cal mag around either way.

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The problem with using Cal mag to correct a magnesium deficiency is the extra calcium. Too much calcium can lead to other problems, in extreme cases, manganese deficiency. Nobody wants to end up with a manganese deficiency.
A more conservative approach would be to increase the pH slightly, 6.4 to 6.5 pH should do it for starters. Is the magnesium deficiency continues to occur in the new growth within 5 to 7 days after increasing pH, then supplement with a little bit of Epsom salts. That takes care of adding supplemental magnesium without offsetting calcium levels.

They are all good, but thank you. They have been in flower for 13 days now and are looking great. I just backed off on all feeding and gave pure water for a few weeks. Sometimes thats all they need is some good clean water.

KushyMcKush said:

They are all good, but thank you. They have been in flower for 13 days now and are looking great. I just backed off on all feeding and gave pure water for a few weeks. Sometimes thats all they need is some good clean water.

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Awesome.
Wishing you a bountiful, quality harvest.

Cilantrillo said:

Awesome.
Wishing you a bountiful, quality harvest.

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Thanks friend!