Probably Stolen Hydroponic System: Crops, Nutrients & Yield

Quick answer

Load a seed, water mixed with nutrients and a power source; the Hydroponic System does 8 work per night for 8 energy. Nutrifruit (23 work) is ready in 3 nights. Keep nutrient concentration inside the crop’s band and the water clean — health decides whether you harvest small, normal, large or huge produce.

Hydroponic System window growing purple produce above a Furnace and machine bays in Probably Stolen
The Hydroponic System (top) with its module, water and output slots, above the Furnace. Official Steam screenshot · © Questing Goose Studio / tinyBuild

Hydroponic System at a glance

StatValue
Base price300 Credits
Energy8 per night
Speed8 work per night
InputsSeed, water container with nutrients, power source
Pauses whenWater or power runs out (no extra drought damage)
WarningRemoving a growing crop destroys it

Crop table

CropWork (nights)Base yieldWater / nightNutrient band
Nutrifruit23 (3)5100 ml0.5–2.5%
Kotton32 (4)9176 ml2.0–5.0%
Dream Cap28 (4)8100 ml1.75–3.25%
Coffee21 (3)8100 ml1.75–3.25%
Fillerweed11 (2)4287 ml0–2.0%
Hydroreed18 (3)0 (purifies water)20 ml0–2.0%
BloomBerry18 (3), refruits at 108100 ml1.25–2.75%
Keep in mind

Nights assume a default machine (8 work per night). Concentration is measured against water volume, not total mixture.

Health decides harvest size

Plants lose 1 health per work point when nutrients are too low and 0.5 when too high. Heavy metals, chemicals, microbes, organic waste, acid and base each cause separate damage once they pass a small threshold — clean water matters.

Crop healthHarvest
15 or lessAll small
16–3070% small
31–5030% small
51–70All normal
71–8080% normal, rest large
81–9030% normal, rest large
91–95All large
Above 95Large and huge (Kotton and Dream Caps never grow huge)

A reliable first crop

  1. 01

    Start with Nutrifruit or Fillerweed

    Nutrifruit is cheap (a seed packet costs 1 Credit) and done in 3 nights. Fillerweed ignores nutrient and water quality, which makes it the safest test crop.

  2. 02

    Dose the water

    Drop Hydroponic Nutrient Tablets (5 Credits) into the water container and check the concentration with the Plant Analyser (200 Credits) before the first night.

  3. 03

    Use clean water

    Scan the water. Contaminants above the threshold damage health on every work point.

  4. 04

    Make room for the harvest

    Produce can overflow into shop inventories, but if every inventory is full new items are lost.

Hydroponic modules

ModulePriceEffect
Nutrifruit150+1 Nutrifruit per module
Dream Cap Neutralizer150Turns Dream Cap into edible Meal Cap (+2 per module). Stackable.
Dream Cap Nightmare150Turns Dream Cap into toxic Nightmare Cap
Kotton Auto Loom200Weaves Kotton Fiber into fabric while farming
Fillerweed Production115+4 Fillerweed once, but no seeds returned. Not stackable.
Hydroreed Filter105Harvest a Hydroreed stem as a water filter
Smuggler100Removes the contraband status of the growing seed

Common questions

How long does Nutrifruit take to grow?

23 work points, which is 3 powered nights on a default Hydroponic System (8 work per night).

Why are my crops small?

Low crop health. Keep nutrient concentration inside the crop’s band and remove contaminants from the water; health above 50 gives normal produce.

Do Dream Cap Spores count as contraband?

Yes. A Smuggler module removes that status while the seed grows, but not from every later chemistry product.

Sources & version notes

Community game-data research. Sources reviewed October 31, 2026. This guide does not claim an independent in-game test.

  1. Nico Wiki: hydroponics

    Crop baselines, nutrient bands, contaminant damage and harvest-size rules.

  2. Nico Wiki: Hydroponic System

    Energy, work and overflow behaviour.

  3. Nico Wiki: hydroponic items

    Seed and supply prices.

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