Terra Aquatica DualPart Coco Feed Chart – Doses
Terra Aquatica's own published DualPart Coco schedule — the two-part feed built for coco specifically. Millilitres per litre of water, by growth stage.
- All dosesper LITRE
- pH5.5 – 6.5
- Base feed0.5–3ml of each part
- RipeningFinalPart 5ml
The chart as text
| Stage | Coco Grow | Coco Bloom | FinalPart | EC (mS) |
|---|---|---|---|---|
| First roots | 0.5ml | 0.5ml | – | 0.3–0.6 |
| First true leaves | 1ml | 1ml | – | 0.8–1.2 |
| Growing | 2.5ml | 1ml | – | 1.3–1.8 |
| Pre-flowering | 3ml | 2ml | – | 1.8–2.0 |
| Flowering | 1.5ml | 3ml | – | 1.4–2.2 |
| Ripening | – | – | 5ml | 1.4–2.6 |
Both bottles go in at every stage, in changing proportions — Terra Aquatica label them Coco Grow and Coco Bloom rather than A and B.
Getting it right
- Both parts, every stage. This is not a grow-then-bloom switch: the ratio shifts, but neither bottle drops out until ripening.
- Never premix the concentrates. Each part goes into the water separately.
- Empty the reservoir every 10 to 14 days.
- Ripening is FinalPart alone, at up to 5ml per litre, for about ten days.
- DualPart Coco or TriPart in coco? Both work. DualPart is the simpler two-bottle route built for the medium; TriPart gives you finer control and covers hydro as well.
Everything on the chart

DualPart Coco Grow
From £9.49
Peaks at 3ml pre-flower

DualPart Coco Bloom
From £9.49
Peaks at 3ml in flower

FinalPart
From £7.49
5ml, ripening, alone

Terra Aquatica CalMag
From £7.99
Coco on RO wants it

Pro Roots
From £11.49
Early root stimulant

Seaweed
From £13.49
Kelp biostimulant

FlashClean
From £12.49
Clears salts from the medium

Buffered coco
£13.35
Ready to plant into
Common questions
Is DualPart Coco the same as Coco A and B?
It is the same idea — a two-part coco feed — but Terra Aquatica name the bottles Coco Grow and Coco Bloom, and the ratio between them changes through the run rather than staying equal.
Do I still need CalMag?
On RO or very soft water, yes. Coco holds and releases calcium in a way that catches people out, which is why the CalMag sits alongside almost every coco schedule.
Why are the doses per litre?
Because that is how Terra Aquatica publish them. Multiply by ten if you are used to a brand that doses per 10 litres.
Shop the full Terra Aquatica range
Figures as published by Terra Aquatica in their Application Tables, terraaquatica.com. Always read the label on the bottle you own. Terra Aquatica is a trade mark of its owner.