Looking to get a great deal on GRODAN? Buy from our buddies at Growers House and you SUPPORT HIS CHANNEL too! Just follow the link below: https://growershouse.com/grodan-stonewool-a-ok-plugs-2-x-2?aff=40 If you are a hydroponic grower using any Grodan product then you need to watch this—right now. Well, okay, not immediately but make sure you do it before you next pre-soak your next batch of A-OK starter plugs, Unislabs, Delta blocks, Hugos or Big Mamas, okay?