Hey, b0b, great, and good to meet you! Thanks for your response, and sorry I wasn't more snappy about it. I don't seem to get post announcements by email and I'm new around here. I just took this photo of Vertigo (left) next to Vertigo x Speedy Gonzales (right):
View attachment 229137
The nutes (GH Flora series) and media (coir/perlite) are the same for both. I've added SuperThrive for both. Recently added some Epsom salts for magnesium. Might do calcium soon. The biggest difference between them is container size. The Vertigo is in a gallon hempy-style container. Started it from seed, just dropped into the coir. The VxSG is in a smaller container that it has outgrown. They are 4 weeks old FS, though the Vertigo took 3 days longer to emerge. The Vertigo was well behind the VxSG until the last week, which it has now surpassed in size. But, as you can see, it is a yellower plant. Gotta get that hybrid into a large pot, today!
I posted this after seeing the [more severe] yellowing problem that Alex showed with his Vertigo, and which is why I ask about the strain. Thanks for your thoughts.