@DinafemSeeds, Thanks Mark, great info and has been added to the knowledge bank 👍
On balance decided to err on the side of caution as it's my first run with autos and the two plants were finishing at different rates. Next time I will know better.
The seeds came from the same bag, but they were (for stealth shipping) re-packaged. That's most likely when things went wrong.
Thanks again for all the help
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