Alien RDWC 21 Pot 20L Black Series – Deep Water Culture

21-site recirculating DWC for large indoor grows

The Alien RDWC 21 Pot 20L Black Series is a high-capacity recirculating deep water culture system for growers scaling up. It continuously circulates oxygen-rich nutrient solution between all 21 pots and the header pot, so every plant draws from the same conditions. That shared solution is what holds EC and pH consistent across a big system and prevents the uneven growth you get feeding pots separately, driving powerful root development and dense flowers with strong density.

Key Benefits

• 21-pot recirculating layout for large-scale, high-yield indoor growing
• Continuous circulation keeping feeding balanced across every site
• Oxygen-rich root zones supporting rapid root development and plant health
• Stable EC and pH across the whole system via the shared solution
• JET-STREAM SILENT 2.0 pump driving quiet, constant nutrient movement
• Vigorous vegetative growth and heavier flowering with improved density

How to Use

1. Assemble the system with the supplied pipework, spacing pots to the recommended plant centres.
2. Fit the JET-STREAM SILENT 2.0 water pump for constant circulation through the system.
3. Connect a suitable external air pump (100 L/min, not included) with air stones to feed dissolved oxygen to the root zones.
4. Fill the system and mix hydroponic nutrients to your feeding schedule.
5. Place plants in net pots with an inert medium such as clay pebbles so roots reach the circulating solution.
6. Monitor EC, pH and water levels regularly, using a water chiller to hold nutrient temperature stable if required.