Nutrients — Canna

Canna does something most nutrient brands do not: instead of one universal line with an adjustment per medium, it puts six separate base lines side by side. Terra for potting soil, Coco for coco, Hydro for rockwool or clay pebble systems, Aqua for recirculating systems, COGR for coco slabs and BIOCANNA as a fully organic line. They are not interchangeable, and that is the whole point.

Substrate first, bottle second

Canna fixes the order in which you choose. Coco binds calcium and magnesium, so the Coco line is pre-corrected for it. A recirculating system needs a different salt balance from one that runs to waste, which is the difference between Aqua and Hydro. Pick the wrong line for your medium and you spend the rest of the cycle correcting after the fact.

The additives cross the lines, the base nutrients do not

Where the base feed differs per substrate, the well-known additives work across all of them. Rhizotonic for root development, Cannazym for breaking down dead root material, Cannaboost as a bloom stimulator and PK 13/14 for the flowering peak. Alongside those sit the separate monos, letting you adjust nitrogen, phosphorus, potassium, calcium, magnesium or iron on its own rather than raising your whole schedule.

Mind the combinations Canna itself rules out

Canna publishes explicit do-not-combine instructions on several products. Cannazym and Cannaboost both carry them, hydrogen peroxide among them, which we also sell as a system cleaner. Read that line on the bottle before mixing two products in one reservoir: this is not a precaution but one product rendering the other inactive.

Frequently asked questions

Can I use Terra nutrients in coco?
Technically yes, but you lose the calcium and magnesium correction the Coco line is built around. The separate line exists for a reason.

What is the difference between Aqua and Hydro?
Aqua is for recirculating systems where the water goes round, Hydro for systems where it runs through. Salt build-up in the tank differs as a result.

Do I need all the additives?
No. The base line is a complete feed. Additives adjust at a specific moment; start with the base and add only once you know why.