Calcium deficiency?

[Triple R]

This is a white widow Auto, in coco, pearlite mix about 70/30 in 3 gal fabric pot. In week 2 of flower under 24 hrs mars hydro tsl 2000. Running about 76-80° f and 50% +/- rh. Started getting brown spots last week. Feeding GH trio @6.3-5 ph and was giving call mag until I ran out. My question is does this look like a cal deficiency. I ordered humbolts call mag plus iron but not here yet. Anything I can do till it comes? Thanks

 

[The Phantom]

Here, take a look at this thread and it will tell you ways to increase calcium using some readily available products.

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[Triple R]

Thanks good I fo

 

[The Phantom]

No problem, best of luck to you and your lady.

 

[Triple R]

Thanks I got lazy for a couple of weeks and let my supplies run out. But I think I got a handle on it now. Last grow same set up came out awsome. 3 blue cheese and 3 purple Haze fems. Just put this Auto in to stretch my supply out till Halloween when outside crop is ready to cut.