Hydroponics
Reservoir Size Calculator
Find the right reservoir size based on plant count and system type.
Inputs
Recommended Reservoir
110 L
Number of Plants: 10 | Deep Water Culture
Min Reservoir
110 L
Per Plant Need
11 L
Factors Applied
- • Deep Water Culture: uses 1x multiplier
- • Evaporation: 70 L over 7 days
- • Recommended = max(min needed, 120% of refill volume)
Tips
- Always round up — a bigger reservoir is more stable.
- DWC needs less per plant than drip/coco systems.
- Monitor water level daily in the first weeks.