Photosynthetic Bacteria
Photosynthetic Bacteria
Natural Supplement for Fish Fry — Photosynthetic Bacteria (PSB), 36 oz
Photosynthetic bacteria (PSB) are live, beneficial microbes that support fry growth, resilience, and water quality. This 36 oz bottle provides an eco-friendly, low-effort way to enrich fry diets while helping keep rearing tubs balanced.
- Nutrient-rich: Natural proteins, amino acids, and vitamins to support early development.
- Digestive support: Encourages a healthy gut microbiome for efficient nutrient uptake.
- Immune support: Bioactive compounds help bolster fry resilience.
- Cleaner water: Assists in breaking down dissolved organics, discouraging harmful spikes.
- Higher survival potential: Consistent use promotes sturdy, fast-starting fry.
Packaged in a recycled PET container to minimize leaks and preserve freshness during transit. For best results, store in warm, full sunlight to keep the culture active.
Ideal for breeders maintaining multiple fry tubs who want a live, scalable supplement.
How to Use
Dosage: Start with 2–5 mL per gallon (0.5–1.3 mL/L), daily or every few days depending on stocking and water quality. Increase gradually if water remains clear and parameters are stable.
With other foods: Safe to use alongside powdered fry foods, infusoria, and baby brine shrimp.
Method: Shake gently, add near flow/aeration, and observe. Maintain good aeration and regular small water changes.
Storage: Keep the bottle upright in a warm, sunny location. Avoid freezing. If light-deprived, culture may slow—restore sunlight to reactivate.
Notes & Disclaimer
Odor is normal: Live PSB can produce a strong, sulfur-like smell (e.g., trace H₂S)—this is expected and harmless in typical use.
Monitor ammonia, nitrite, and pH regularly, especially in dense fry setups. Reduce dosage if water clouds persistently.
For aquarium use only. Not for human or animal consumption. Keep out of reach of children and pets.
FAQ — Quick Answers
How often? Start daily in small doses; switch to every 3 days once growth and water look steady.
Combine with foods? Yes—PSB is a supplement and pairs well with powdered diets, infusoria, and baby brine shrimp.
Best storage? Warm, sunny spot; light maintains activity and helps the culture reproduce.
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Dry Goods Shipping Information
Dry Goods Shipping Information
Shipping is free. USPS First Class or USPS Ground (5-7 business days)
Note
Note
For ornamental fish use only. Color and pellet size may vary due to natural ingredients. Store in a cool, dry place and use promptly after opening.
Let customers speak for us
Super great company! Super great customer service! They provided me with much knowledge about the fish I was purchasing and how to help them acclimate to their new surroundings! I will be back to purchase more fish from them! Their packaging was superior and kept the fish safe while they were being transported
My new Medaka’s that I purchased from SNR were amazing! They were packaged so carefully and arrived safely and quickly! The color of the black Orochi were deep and pure ! They were ALL extremely healthy and active! I loved them and the quality of SNR’s fish so much that I came back to buy more! This is a superb fish breeding company, the highest quality!
Gorgeous fish! These are for a Skittles mix in my pond and they are so lively and gorgeous. Pick up was fast and simple as well and staff is so helpful with any questions. Deeply impressed with this company.
Very young healthy and color fish. Look exactly like the pictures definitely going to buy more different strain
All medaka arrived alive and in great condition! Super-fast shipping, excellent packaging and high quality medaka. Highly recommended seller! Thank you.
Healthy and beautiful fish! Will be purchasing more strains in the future! Very reliable seller!
Very good quality shiro! No one else has Shiro like these people do!
