@@Raviaquaacademy if there is seperate probiotics for every thing, then cost of production goes beyond what a farmer can afford. Farmer becomes like a end user of all companies. He won't be like a manufcturer any more. Vibrio - bascillus Amonia- NS Nitrite- NS H2S-paracoccus Organic matter- PS Gut - Lacto bascil Imagine production cost if he buys every thing to produce shrimp that he sells at rs190???