What else do i need?

Hi.

I have some autos at 3 weeks old. am using canna coco pro with coco a&b nutrients. Is there anything else i need to optimise my pants performance?
Thanks.

Botanicare Liquid Karma is great stuff by its self to provide amino acids, b vitamins , carbohydrates, and liquid compost to increase yield and aroma... I would also suggest Great White Mycorrhizae/Beneficial Bacteria to increase root mass and some type enzyme concentrate like cannazym or hygrozme to help the roots digest nutrients... P-K boosters are nice to use to induce flowering but are not necessary they just leave you with extra fertilizer salts in your growing medium that have to be flushed out I would stick to the organics on top of canna a&b you will love the way your smoke tastes and smells