Sudden orange dead spots in center of leaves

Hey guys this is my first time posting here so my bad if I'm breaking rules. I got 4 lovely ladies, two sour grapefruit and two Tahoe/og. I've grown both strains before and never come across this issue. I had to buy ffof for the first time instead of black gold due to moving and have heard there are some bad batches of soil goin around. Anyways I have these orange spots that either start in the center or sometimes all the edge of the leaf. It doesn't look like fungus or a pests so I'm hoping you guys could help me out. I've been staring at deficiency charts for hours. I think it's worth mentioning that I just switched these to an hps as well as sprayed them with green clean for spider mite deterant. Il post pictures momentarily I just have to hop on the laptop

pic?

yea heres a couple pictures

thats a defiency,maybe magnesium,but its for sure a defiency

https://www.icmag.com/ic/showthread.php?t=255262

look like this?get cal/mag

at this point im almost positive its a calcium def

Are the stems red

Yea I have been reading a lot about people getting cal mag deficiencies this year with ffof. I'm definetly gonna have to add some dolomite to the bag I have sitting in the back. As of for these ladies should I just throw some cal/mag plus in the next feeding ? I grow all organic and use earth juice. I have the basic 5 but idk if any of them are what I need right now

The big fan leafs stems are pretty purple on top and there's like purple lines throughout the stems . Il post a picture

Yes your having def ..........ffof has some shit going around this year ......me and a lot of my friends got bad batches of ffof ........I had about 30 bags from last year that were sealed in my shed I used them this year no problems .....I ended up having to buy another 10 bags of new and those plants got def i was so pissed ..........I'm done with ff after this year there getting to big for there own good and the product is suffering IMO I've been reading lots of bad reviews other than my own about ffof this year

I honestly might just toss that bag i have and go back to black gold. never had any problems with them. Thanks for the help guys are we concluding this to be a cal/mag deficiency?

I use ffof and no probs at all but I always add cal-mag at every feeding

Did you look at this chart? Imo the best one...and yes it seems to me some calcium