Grow more,
with less.
A nutrient recipe that adapts to your tank, your crop and your growth stage. No soil. No guesswork. Just measured, healthy plants.
Three steps. One healthy plant.
Mix the water
Fill your reservoir with clean, room-temperature water and aerate for a few minutes.
Dose the nutrients
Use our calculator below to dial in the exact millilitres for your crop and growth stage.
Light & harvest
Provide 12-16 hours of light a day. Top up the tank weekly and harvest as needed.
Find your perfect crop.
Select your growing conditions to get a personalised recommendation.
Great choices for your setup.
Five crops, hand-tuned for
hydroponics.
Every crop has its own appetite. We've dialled in the millilitres-per-litre, PPM and EC targets so you can skip the trial-and-error.
Lettuce
Crisp and cool. Grows rapidly in gentle nutrient concentrations.
Tomato
Heavy feeder, heavy yielder. The reward is unmatched flavour.
Basil
Fragrant, fast and forgiving. Perfect for windowsill systems.
Spinach
Iron-rich and prefers cooler water and lower light.
Strawberry
Sweet and delicate. Requires strict pH control.
Your recipe will appear here
Fill in the form and hit Calculate mix to see exactly how much nutrient solution to add.
Understanding PPM & EC
Parts per million
How much nutrient is dissolved in your water. Too low and plants starve; too high and you risk root burn. Every crop has its own sweet spot.
Electrical conductivity
Measures how strongly your water conducts electricity — a proxy for nutrient density. Most pros prefer EC because it's a universal standard.
The hidden lever
Even a perfect recipe fails if pH is off. Aim for 5.5–6.5 for most hydroponic crops. Test weekly and adjust with pH up/down.
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What our growers say.
"Farmspherica killed the guesswork. My tomatoes are heavier and the leaves stopped yellowing within a week."
"Stage-based dosing was the missing piece. My basil went from skinny to bushy in two weeks."
"Clean interface, real numbers. I use it before every reservoir change."