Contact us to orderPhotosynthetic Bacteria (PSB) is a liquid microbial solution containing Rhodopseudomonas palustris and Bacillus subtilis. It improves water quality, enhances juvenile survival, prevents disease, and boosts growth when used as a feed additive or water conditioner, ideal for sustainable aquaculture.


1. Improved Survival Rate of Juveniles: Serves as an initial feed for larvae, increasing the survival rate of juvenile aquatic animals.
2. Water Quality Improvement: Consumes harmful substances such as ammonia, nitrite, and hydrogen sulfide, decomposes organic waste, and promotes beneficial algae growth for a cleaner, balanced aquatic environment.
3. Disease Prevention: Inhibits the growth of pathogenic microorganisms, reducing disease outbreaks in fish and shrimp.
4. Feed Additive: Rich in protein and vitamins, enhances immunity and growth when added to feed (0.5–1.5% of total feed volume).
5. Combined Use with Organic Fertilizer: Prevents water deterioration and problems caused by excessive fertilizer use.
6. Water Conditioner: Can be applied every 15 days to maintain stable water quality; increase frequency during poor conditions.
Water treatment: 1–2g per cubic meter of water.
For best performance, use when water temperature is between 15°C and 40°C (optimal: 28–36°C).
Avoid simultaneous use with disinfectants or sterilizers; apply PSB at least one week after disinfection.
Main Composition: Rhodopseudomonas palustris and Bacillus subtilis.
Form: Liquid culture containing active photosynthetic bacteria.
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