BAC Feed Chart
BAC Coco is Coco Grow A+B through veg and Coco Bloom A+B through flower, with their root and bloom stimulators alongside. The chart below is BAC’s own schedule, with the target EC on every week. Underneath it, our free calculator fits it to your pot size, plant count and cycle length, and works out exactly how much you need to buy.
The BAC Coco feed chart
Millilitres per litre of water. Veg here is four weeks and flower nine, which is the commonest UK cycle. If yours is longer or shorter, the calculator fits the same schedule to it rather than simply running out.
Swipe the chart sideways to see every week.
| Week | Root Stimulator | Final Solution | Coco Grow A+B | Bloom Stimulator | Coco Bloom A+B | F1 Extreme Booster | Target EC |
|---|---|---|---|---|---|---|---|
| Veg week 1 | 0.1 | 0.6 | 3.0 | – | – | – | 1.6 |
| Veg week 2 | 0.2 | – | 3.0 | – | – | – | 1.6 |
| Veg week 3 | 0.2 | – | 3.0 | – | – | – | 1.6 |
| Veg week 4 | 0.2 | – | 3.0 | – | – | – | 1.6 |
| Flower week 1 | 0.2 | 0.6 | – | 0.2 | 3.5 | – | 1.8 |
| Flower week 2 | 0.2 | – | – | 0.2 | 3.5 | – | 1.8 |
| Flower week 3 | – | – | – | 0.2 | 4.0 | – | 2.05 |
| Flower week 4 | – | – | – | 0.2 | 4.0 | – | 2.05 |
| Flower week 5 | – | 0.6 | – | 0.2 | 4.5 | – | 2.2 |
| Flower week 6 | – | – | – | 0.2 | 3.5 | 2.5 | 1.6 |
| Flower week 7 | – | – | – | 0.2 | 3.5 | 2.5 | 1.6 |
| Flower week 8 | – | – | – | 0.2 | 3.5 | 2.5 | 1.6 |
| Flower week 9 (flush) | – | – | – | 0.2 | – | – | – |
Target pH 6.0. BAC print Silica Power on the sheet. Silicon is a tick box here rather than a fixed row, and it starts unticked: most growers who want one already run one, and the silicon step in the calculator is where you pick it. Tick Silica Power and it goes straight back on the chart at BAC’s own rate.
One chart, two bottles
BAC print their schedule around one base product running from veg all the way to flower. What is actually sold in the UK is a separate Coco Grow and a Coco Bloom.
So the chart above uses Grow through veg and Bloom through flower at the rates BAC print for that single base. That is the honest mapping between their document and the bottles on the shelf, and it is worth knowing that is what you are looking at rather than assuming BAC published it in this shape.
Mix to the EC, not to the millilitres
The doses above assume your water starts at zero. UK tap water usually sits between 0.3 and 0.5 EC before you add anything, and that counts towards the targets in the last column.
So on tap water you will reach the chart’s own EC with slightly less nutrient than it prints. Use the doses to get close and the meter to know. On RO, the printed figures are the ones to run.
What a full BAC Coco run costs
For a common UK setup, nine plants in 3 gallon Quick Fill coco bags, four weeks of veg and nine of flower, the whole cycle comes to about £294 across 6 products, mixing roughly 1,500 litres of feed.
The single biggest line on that bill is BAC Final Solution at around £85, against £35 for the base feed itself. That is worth knowing before you order, because it is usually the additives rather than the base that decide what a run costs.
The calculator prices your actual grow rather than this example, and prices the other fifteen brands alongside it, so you can see what you are paying for.
Which BAC line should I be on?
Coco is the coco line. Hydro is for inert media, Soil for potting mix, and Organic is their fully organic soil range.
- BAC Hydro — Hydro Grow A+B then Hydro Bloom A+B, for inert media.
- BAC Soil — One-component Soil Grow then Soil Bloom.
- BAC Organic — Organic Grow then Organic Bloom, with the Organic PK Booster.
The calculator only ever lists the lines that suit the medium you pick, so you cannot accidentally run a soil chart in coco.
What you need for a BAC Coco run
- BAC Root Stimulator (optional)
- BAC Final Solution (optional)
- BAC Coco Grow A+B
- BAC Bloom Stimulator (optional)
- BAC Coco Bloom A+B
- BAC F1 Extreme Booster (optional)
Or let the calculator work out the sizes and quantities for your own grow and put the lot in your basket in one click.
Open the BAC Coco calculator →
The Hydro Bros is not affiliated with, endorsed by or approved by BAC. The figures above are transcribed from BAC’s own published feed chart. They are a starting point rather than a prescription: read your own runoff and your own meter, and adjust to your room.
