162CT OASIS® Horticubes® XL Multiseed 20/CS (3240)A lower density and higher drainage foam, the Horticubes growing medium is specially engineered for the hydroponics seed germination of vegetables and herbs. The Horticubes higher drainage design helps to maintain an ideal air to water balance, even under heavy watering conditions. The enhanced drainage also keeps the top of the media drier, helping to minimize algae growth. The lower density of the Horticubes foam medium enables superior root growth.