Gonyostomum semen ORIGIN Country origin USA Locality origin Arnheim Sloughs, Michigan, USA Locality type Freshwater Habitat Freshwater Isolator Andersen R.A. CULTURE Medium 20% Z8+Vitamins+Soil extract Growth temperature 15°C DETAILS Obtained from SCCAP Date deposited to NORCCA 14-Mar-2017 Remarks Toxic: ? | Origin: Collected from brown water pond almost black. Weak growth - not very dense. Original growth medium DY-V.