
CANNA Coco A: The 4-0-1 Half of the Coco Base Feed
Part A is the nitrogen side of CANNA's coco base feed, labelled 4-0-1. It is half of one fertilizer that CANNA splits across two bottles. The reason is chemistry rather than packaging. A coco feed needs high levels of calcium and phosphate, and held together as concentrates those elements react and drop out as a slimy residue. Kept apart and diluted one after the other, they stay available to the roots. That is why Part A is sold alone here, with Part B on its own page. Buying the halves separately lets a grower restock whichever jug empties first, or move up to a drum without buying a matching set. The label rate is 0.5 fl oz per gallon, or 40 mL per 10 L, and Part B goes in at exactly the same rate. CANNA puts the combined window at an EC of 0.8 to 1.8 mS/cm over clean source water. The target pH sits between 5.5 and 6.2.
CANNA Coco Part A Sizes, From Tent Bottle to IBC Tote
Mix it into the reservoir water first, stir well, and only then add Part B. Never pour the two concentrates into the same measuring cup, even for a moment. The same rate carries the crop from rooted cutting to the final week. Buffered coco smooths out the shift in demand between veg and flower. The size range is where this listing earns its place. The litre bottle suits a tent that already has Part B on the shelf. The jerrycans cover rooms that mix a fresh reservoir every few days. The drum and the caged tote are for facilities on dosing injectors, with Part A on one head and Part B on another. Those two big formats need a pump, a spill tray and floor space, so they only make sense for a grow that will empty them. Store any size sealed, out of direct light and away from frost. On its own this is not a complete feed, and plants given Part A alone will run short of phosphorus quickly.
Key Features
- 4-0-1 nitrogen half: Carries the nitrogen share of the coco base feed, while Part B supplies the phosphorus.
- Separate by design: Calcium and phosphate stay in different bottles so the concentrates never react on the shelf.
- One rate for the whole cycle: Half an ounce per gallon from rooting to harvest, always matched by Part B.
- Five container sizes: A 1 L bottle, 5 L and 20 L jerrycans, a 200 L drum and a 1000 L IBC tote.
- Hand mix or injector: Works on hand-mixed reservoirs or on a dosing injector head in drain-to-waste coco.
- Made for buffered coco: Pairs with pre-charged coco such as CANNA Coco Professional Plus and the COCO Brick.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | CANNA |
| Product | COCO A (Part A of COCO A & B) |
| NPK | 4-0-1 |
| Dose | 0.5 fl oz/gal (40 mL per 10 L) |
| Used with | COCO B at the same rate |
| Combined EC | 0.8 to 1.8 mS/cm (A + B, 0.0 EC water) |
| Target pH | 5.5 to 6.2 |
| Growth stages | Rooting through harvest |
| Sizes | 1 L, 5 L, 20 L, 200 L drum, 1000 L IBC |
| SKUs | 9410801 / 9410005-A / 9410820 / 9410802 / 9410800 |
| Storage | Sealed, out of direct light, frost free |