Magnesium deficiency?

[TrichomeChaser]

Hey guys.
Got a little deficiency showing that seems to spreading rather quick past couple days. I got two plants just transplanted to 5 gallon pots on Friday. I mixed some worm castings and some dolomite in with the promix bx I use. I use biobizz for nutes.ive been feeding every watering with 1ml per gallon of biogrow and bioheaven The deficiency started showing a week before transplant but only on a couple leaves. I have them under a 600w mh. 72-74 degrees lights on 64 lights off. The affected leaves are mostly towards the tops on the fan leaves just under them. I was thinking it was a magnesium def just wanted to confirm before making any moves. If so should I just increase my feeding strength or take a different route.
Thanks

 

[Orlando737]

Hey guys.
Got a little deficiency showing that seems to spreading rather quick past couple days. I got two plants just transplanted to 5 gallon pots on Friday. I mixed some worm castings and some dolomite in with the promix bx I use. I use biobizz for nutes.ive been feeding every watering with 1ml per gallon of biogrow and bioheaven The deficiency started showing a week before transplant but only on a couple leaves. I have them under a 600w mh. 72-74 degrees lights on 64 lights off. The affected leaves are mostly towards the tops on the fan leaves just under them. I was thinking it was a magnesium def just wanted to confirm before making any moves. If so should I just increase my feeding strength or take a different route.
Thanks

What's does the ph read?

 

[firsttimeARE]

Looks like Mg to me, i dont soil so cannot offer advice.

 

[hexthat]

looks like light bleaching to me

 

[Bakersfield]

They look a little under fertilized in general. Check the ph of your soil and go from there. If the ph is fine, then up your fertilizer and give some Epsom salts.

 

[TrichomeChaser]

What's does the ph read?

My ph was a little high. I didn't have any organic ph down until yesterday. Was using water in the 7.5 range for a couple waterings.

looks like light bleaching to me

Thanks for the reply.
I didn't think it was light bleaching because it is not on the leaves closest to the light only. There is some affected leaves about halfway down the plant as well. And the light is couple feet away from tops

They look a little under fertilized in general. Check the ph of your soil and go from there. If the ph is fine, then up your fertilizer and give some Epsom salts.[/QUOTE

Thanks for reply man. They do look under fert because I laid off for a couple days until I couldn figure out problem. I foilar fed with some Epson salts this morning before lights out so I'm going to see what that does.