Atami B'Cuzz Coco Feed Chart – Nutrient A&B Doses
Atami's own published B'Cuzz Coco Nutrient A&B schedule for coco coir. Week by week, in millilitres per 100 litres of water.
- All dosesper 100 litres
- pH and EC5.5 – 5.8 · EC 1.0 – 2.2
- Base feed100-150ml rising to 200-300ml, each part
Every figure is millilitres per 100 litres of water. That is a full reservoir, not a watering can, so scale it down to the volume you actually mix: 100 litres is ten 10-litre cans, so divide each figure by ten for a 10-litre can and by twenty for a 5-litre can. The Flower 2 base feed of 200-300ml per 100 litres is 20-30ml in a 10-litre can, of each part.
Getting it right
- A and B go in one at a time, never together. Add Nutrient A to the water and stir, then add the same amount of Nutrient B and stir again. Poured into each other neat they react and drop out of solution.
- Coco holds no food of its own. It is an inert fibre, so the plant only gets what is in the water. Feed every watering rather than alternating feed and plain water the way you would in soil.
- pH 5.5 to 5.8 is lower than soil growers expect. Coco pushes the solution up as the plant feeds, so check it in the reservoir and again in what runs out of the pot, and correct with pH Down.
- Water until it runs out of the bottom. Aim for 10 to 20% coming out of the pot each time. That runoff carries away the salts coco holds on to, and it is the sample you test for EC and pH.
- Flowering starts at Flower 1 on this chart. Atami number their own schedule week 1 to week 10 straight through, so the switch is placed where Root Stimulator stops and Bloom Stimulator starts — their week 3. Root Stimulator runs Grow 1 to Grow 2, Growth Stimulator tapers and ends at Flower 4, Bloom Stimulator starts at Flower 1 and climbs, and PK 13/14 runs Flower 3 to Flower 7.
- PK 13/14 stops a week before the end. Flower 8 is base feed and Bloom Stimulator only. Atami print no plain-water week on this chart, so if you want one, that is your own week after it.
- Ranges are a floor and a ceiling. Start at the bottom of a range with young or stressed plants and work up only if the plants take it. Mix, then check EC before it goes anywhere near a pot.
Everything on the chart
Coco Nutrition A&B
From £12.49
100-300ml of each part, Grow 1 to Flower 8
B'Cuzz Root Stimulator
From £14.49
100ml, Grow 1–2
Coco Bloom Stimulator
From £28.49
100ml to 200ml, Flower 1–8
Atami PK 13/14
From £7.90
150ml, Flower 3–7
Common questions
What does 200-300ml actually mean in my watering can?
It is the dose for 100 litres of water. A 10-litre can is a tenth of that, so it takes 20 to 30ml. A 5-litre can takes 10 to 15ml. Measure each part separately and use the same amount of A as of B.
Which week does flowering start?
Atami's own schedule is numbered week 1 to week 10 with no line drawn between veg and flower. On this chart the switch is placed at their week 3, where Root Stimulator stops and Bloom Stimulator starts, and the flower weeks are numbered from there. Flower 3 is where PK 13/14 comes in and Bloom Stimulator steps up, which is the busiest change on the chart.
Is there a plain-water week?
Not on this chart. PK 13/14 stops after Flower 7 and the base feed and Bloom Stimulator carry on to Flower 8. If you want to finish on plain water, that is a week of your own after the chart ends.
The chart lists a Growth Stimulator — why is it not in the list above?
We do not stock the B'Cuzz Growth Stimulator at the moment, so we have not linked it. Everything else on the chart is above.
Growing in soil or in a hydro system instead?
Atami publish a separate schedule for each, at different rates, and the soil and hydro charts are in our feed chart index.
Figures as published by Atami on their own B'Cuzz Nutrients Feeding Schedule, atami.com. Always read the label on the bottle you own. Atami is a trade mark of its owner.