Researchers have created an inexpensive and easy-to-use growth medium called FANS that effectively isolates disease-causing Pythium fungi from soil and water samples. Unlike expensive laboratory media containing toxic chemicals, FANS uses affordable pharmaceutical antibiotics costing about $11.55 per liter. This new medium successfully prevents contamination from other fungi and bacteria while promoting Pythium growth, making it especially valuable for scientists in developing countries studying plant diseases and pythiosis infections.