Gf has a few autos growing in happy frog. I have been noticing it slowly progressing, getting worse and not really sure what to look for or do about it as Im pretty new to growing myself (only on my 2nd grow). From looking a few picture on here and google its pointing towards a cal def and I know she has never phd her water and I think her tap water is 7.3. It is pretty going into late flower but i can tell the affected ones out of 5 are slower progressing and there will have to be separate harvests. Any help or tips would be greatly appreciated. Thanks