Start with the correct CANNA Coco system
CANNA Coco is an A & B base nutrient system designed for cultivation in coco. The two concentrates are kept separate and are diluted into the final nutrient solution. Do not mix concentrated A and B directly together. Add each part separately to water and mix thoroughly.
Why the rate changes by crop stage
The manufacturer grow schedule changes the base-nutrient rate as the crop moves from establishment and vegetative growth into generative development. Supporting products are also introduced or removed at different stages. The schedule should therefore be read as a timeline rather than as one permanent ml/L rate.
Use EC as a management signal
EC gives a practical view of nutrient concentration in the solution. The useful number is not only the target EC on paper, but the relationship between source-water EC, mixed-solution EC and what is happening in the root zone. A facility should track plant response together with irrigation volume, drainage and environmental demand.
pH for CANNA Coco
The CANNA Coco reference range used in the Thailand feeding guidance is pH 5.5–6.2. That range is a useful operating reference, but stable root-zone management matters more than repeatedly chasing a single decimal point.
Irrigation changes how the same feed behaves
Two facilities can mix the same nutrient solution and still see different results if irrigation frequency, shot size, substrate volume, runoff and environmental demand are different. In coco, feeding and irrigation should be managed as one system.
Use the calculator instead of doing the math manually
The CANNA Thailand Feeding Calculator scales the manufacturer phase-specific rate to your reservoir volume. Select CANNA Coco, choose the crop stage and enter your tank size. For facility-level purchasing, use the Facility & Order Calculator to estimate litres per crop cycle and the recommended 20 L + 5 L order mix.