Hydrospace LLC crafts unique microbial products (PNS ProBio™ and PNS YelloSno™). The bacteria used in our products are cultured exclusively on water-based extracts (primarily Tellemagrandin II) of Eurasian watermilfoil (EWM). We obtain our EWM by harvesting it ourselves under direction of the City of Boulder Department of Open Spaces & Mountain Parks. EWM is an extremely invasive and destructive aquatic plant; therefore, your use of our fine products contributes to the restoration of native aquatic habitat!