<span class="link_user">@divergentcrypt</span> Thanks for the comment! I've grown the same GSC strain last year and it wasn't stretching that much, I think I just had bad luck with 2 incompatible phenotypes. Both Zamnesia and RQS are usually breeders I'm very happy with. Next time I'll just top them, so they grow more even. It's not best practice for autos but I think it will fix my problem. In the long run I'm planning to get 4x2 with 2 lamps, having 2 or 3 plants in a 2x2 is always a bit limiting, but it works!
Super small and dense - well at least this phenotype. The buds do look nice and I really like the citrusy smell - but the yield was just disappointing.
I still had some deficiencies so I started monitoring and adjusting my PH levels. The yield wasn't bad but I still think I haven't found the optimal fertilizer schedule. It's difficult to say if I'm the problem or the fertelizer, so take my rating with a grain of salt.