Hydrotops Feed Chart
Hydrotops Coco is Coco Grow A+B then Coco Bloom A+B, on the coco edition of their Growers Guide schedule. The chart below is Hydrotops’ 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.
Build my Hydrotops Coco chart →
The Hydrotops 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 | Bactivator | Coco Grow A+B | Top Heavy Crop | Coco Bloom A+B | Triple F | Floral Boost | Target EC |
|---|---|---|---|---|---|---|---|---|
| Veg week 1 | 7.5 | 0.2 | – | – | – | – | – | 1.1 |
| Veg week 2 | 7.5 | 0.2 | 2.0 | – | – | – | – | 1.5 |
| Veg week 3 | 10.0 | 0.2 | 3.5 | 0.5 | – | – | – | 1.75 |
| Veg week 4 | 10.0 | 0.2 | 3.5 | 0.5 | – | – | – | 1.75 |
| Flower week 1 | 10.0 | 0.2 | 3.0 | 0.5 | – | – | – | 1.85 |
| Flower week 2 | 8.5 | 0.2 | 2.0 | 0.5 | 1.0 | – | – | 1.95 |
| Flower week 3 | 7.5 | 0.2 | 1.0 | – | 3.0 | 0.5 | 0.5 | 2.05 |
| Flower week 4 | 5.0 | 0.2 | – | – | 4.0 | 0.5 | 1.0 | 2.15 |
| Flower week 5 | 3.0 | 0.2 | – | – | 4.0 | 0.5 | 1.5 | 2.25 |
| Flower week 6 | 2.0 | 0.2 | – | – | 4.0 | 0.5 | 1.5 | 2.05 |
| Flower week 7 | – | 0.2 | – | – | 3.5 | 0.5 | – | 1.8 |
| Flower week 8 | – | 0.2 | – | – | 2.5 | – | – | 1.75 |
| Flower week 9 | – | – | – | 0.5 | – | – | – | 1.1 |
Target pH 6.0 to 6.3. Grow and Bloom are never mixed in the same solution — it is a straight switch at 12/12.
One dose, two EC targets
Hydrotops print a single set of millilitres with two EC rows beneath them, one for soft water and one for hard. The dose does not move. What changes is the number you are aiming at on the meter.
That is an unusual and rather honest way to publish a chart, because it says out loud what most sheets leave implicit: your water is part of the recipe. Switching water type in the calculator switches which EC you are chasing and leaves the millilitres alone.
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 Hydrotops 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 £523 across 7 products, mixing roughly 1,500 litres of feed.
The single biggest line on that bill is Hydrotops Root Stimulator at around £141. 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 Hydrotops line should I be on?
Coco is the coco edition. Hydro is for rockwool and inert media, and Solo is the soil one.
- Hydrotops Hydro — Hydro Grow A+B then Hydro Bloom A+B, for inert media and recirculating systems.
- Hydrotops Solo (soil) — Solo is a single bottle rather than an A+B, so the same chart is half the pouring.
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 Hydrotops Coco run
- Hydrotops Root Stimulator
- Hydrotops Bactivator
- Hydrotops Coco Grow A+B
- Hydrotops Top Heavy Crop
- Hydrotops Coco Bloom A+B
- Hydrotops Triple F
- Hydrotops Floral Boost
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 Hydrotops Coco calculator →
The Hydro Bros is not affiliated with, endorsed by or approved by Hydrotops. The figures above are transcribed from Hydrotops’ 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.
