Official Nutrifield feed charts

Feed Calculator

Pick your system and tank size — get the official dose rates and totals, week by week, with a mixing guide for the batch.

Choose your nutrient system

Pick the base + additive programme you run — each one has its own week-by-week dosing chart.

Set your reservoir size and water source. We scale every dose to your tank; your water source only changes the mixing tips, never the chart.

Tank size (litres)

Water source — for the mixing tips

← swipe the graph sideways to see every week →

Tap any week on the chart for its mix at your tank size.

← swipe the table sideways to see every week →

Liquid dosages are in ml per litre. The Granular base nutrient is in grams per litre.
EC and dosage values are a guide; results vary with water, temperature and equipment.
Always add additives first, then base nutrients to reach the target EC. The target EC is the final reading in your tank.
Always shake bottles first.
Repeat Veg week 4 if extending the veg stage. Repeat Flower week 8 until ripe if necessary.
Fulife is interchangeable with Cargo Boost — use at the Fulife dosage rate.
Micro Thrive every week — add into the substrate directly. When using microbes, water must be dechlorinated.

These figures are taken directly from the official Nutrifield feed charts — download the printable charts.