For sure a deficiency any suggest how to help?!

Noticed my girls starting to spot and then all of the sudden the all the leaves are looking like this! Doing dwc, the strain is white widow, PH is 5.8, temperatures are good, and they are in the 10th week of flowering. Any suggestions would be greatly appreciated!

It's calcium, either lockout or deficiency. I would raise PH to 6.3, calcium is absorbed better at a higher PH.

U want that tenth week of flowering, u should b flushing at the moment especially tenth week of flower. When I start to flush my leaves turn yellow. Lack of nutes. But it's normal when you're just feeding water

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yeah, they are probably about finished and it's time to flush them anyways.

Thanks for the help guys! I misspoke this is the eighth week of flowering. I have one more round of nutrients and then I start the flush. But I'm going to raise the PH and hope the calcium is the answer!