Alien Aero (4 TO 48 Pot) 15L Pro Silver The ALIEN AERO system uses the air culture technique to allow for more control over the root zone. A powerful, but silent water pump delivers the nutrient solution to each Micro sprinkler located under each lid. You can adjust the time and frequency of feeding to meet the specific needs of each plant species. Because the plants are suspended in the air, and roots aren't trapped in any medium, harvesting and crop rotation are very simple. The removal of the
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