Shrimp Growing Slowly in Ponds? 7 Common Probiotic Mistakes

The cause of slow shrimp growth in ponds is often not solely due to feed or seed quality, but rather incorrect probiotic management. Many commercial farmers have used probiotics, yet results are suboptimal due to several fundamental mistakes. This article discusses seven common mistakes when using probiotics to address slow shrimp growth in ponds and how the right probiotic solution, such as Biosolution's Vaname Shrimp Pond Probiotic Formula, can improve cultivation performance.

1. Not Understanding Probiotic Mechanisms: More Than Just 'Good Bacteria'

### Differences in Probiotic Strains

The first mistake is assuming all probiotics are the same. In fact, each strain has a specific function. The Vaname Shrimp Pond Probiotic Formula contains four superior strains: Bacillus subtilis which acts as an anti-Vibrio and organic decomposer, Bacillus licheniformis producing extracellular enzymes, Nitrosomonas sp. oxidizing ammonia to nitrite, and Nitrobacter sp. oxidizing nitrite to nitrate. Without the right combination, the nitrification process is incomplete, so ammonia and nitrite remain high, inhibiting shrimp growth.

### Synergistic Mechanisms

Bacillus subtilis and Bacillus licheniformis work on the pond bottom to degrade leftover feed and feces, reducing organic load. Meanwhile, Nitrosomonas and Nitrobacter maintain water quality by oxidizing toxic nitrogen compounds. If only one type of probiotic is used, for example only Bacillus, then ammonia is not efficiently converted, causing shrimp stress and growth inhibition. Therefore, choose a multi-strain probiotic that complements each other.

2. Incorrect Dosage and Frequency: More Is Not Always Better

### Recommended Dosage vs Reality

The second mistake is overdosing or underdosing. The Vaname Shrimp Pond Probiotic Formula is recommended at a dose of 5 L per hectare of pond, applied every 7–10 days. Many farmers increase the dose thinking that more will yield faster results. However, excess probiotics can cause nutrient competition in the water, reduce dissolved oxygen, and trigger unwanted bacterial blooms. Conversely, too low a dose provides no significant effect.

### Application Frequency

Application frequency is also crucial. The 7–10 day interval is adjusted to the bacterial growth cycle and pond conditions. In intensive ponds with high stocking density, more frequent application may be needed. However, never apply probiotics daily without water quality monitoring. Regularly measure ammonia, nitrite, and pH to determine the right schedule.

3. Wrong Application Time: Morning vs Afternoon

### Effect of Temperature and Light

The third mistake is ignoring application time. Probiotics are generally applied in the morning or late afternoon when water temperature is not too hot. The optimal temperature for probiotic bacterial activity is around 28–32°C. If applied at midday when temperatures exceed 35°C, many bacteria die before they can work. Conversely, nighttime application can be less effective because phytoplankton photosynthesis decreases, affecting oxygen availability.

### Practical Recommendations

Application should be done in the morning (07:00–09:00) or late afternoon (16:00–18:00). Ensure aeration is running well to distribute probiotics evenly. Do not mix probiotics with disinfectants or chlorine at the same time, as this can kill beneficial bacteria.

4. Not Monitoring Water Quality Before and After Application

### Key Parameters

Probiotics are not a substitute for water quality management, but a tool. The fourth mistake is relying on probiotics without monitoring water parameters. Before application, measure ammonia, nitrite, nitrate, pH, alkalinity, and dissolved oxygen. After application, monitor changes to evaluate effectiveness. The Vaname Shrimp Pond Probiotic Formula is designed to keep ammonia stable below 0.1 ppm and suppress Vibrio populations by up to 40%. However, without monitoring, you won't know if these targets are achieved.

### Follow-Up

If after 3–4 applications ammonia is still high, re-evaluate dosage or frequency. There may also be other pollution sources such as excess feed or insufficient aeration. Probiotics work optimally in a supportive environment, so ensure pond conditions are prime.

5. Ignoring the Presence of Vibrio and Other Pathogens

### Anti-Vibrio Role

One cause of slow shrimp growth is subclinical Vibrio infection. Bacillus subtilis in the Vaname Shrimp Pond Probiotic Formula has anti-Vibrio capability by producing antimicrobial compounds. The fifth mistake is not integrating probiotics with pathogen control strategies. Probiotics do not kill Vibrio instantly like antibiotics, but suppress their population through competition and antibacterial substance production.

### Vibrio Monitoring

Conduct routine TCBS tests to monitor Vibrio counts. If Vibrio populations are high, combine probiotics with strict water management, such as reducing feed and increasing aeration. Probiotics will help gradually lower Vibrio, so shrimp are not stressed and growth returns to normal.

6. Inconsistency and Stopping Midway

### Probiotic Cycle

Probiotics need time to build a stable population in the pond. The sixth mistake is inconsistent application or stopping as soon as improvement is seen. For example, after 2 weeks of application, ammonia drops, then the farmer stops applying probiotics. As a result, bacterial populations decline, ammonia rises again, and shrimp growth slows again. Probiotics should be applied regularly throughout the cultivation cycle, especially in intensive ponds.

### Long-Term Benefits

With consistency, probiotics can reduce water exchange frequency by up to 30%, saving operational costs. Vaname shrimp SR can also increase by 10–15%. So, don't rush to stop; let probiotics work continuously.

7. Choosing Products Without Scientific Data or Legality

### Importance of Registration

The seventh mistake is buying probiotics without ensuring official registration from the Ministry of Marine Affairs and Fisheries or related agencies. Illegal products may contain pathogenic bacteria or not meet claims. The Vaname Shrimp Pond Probiotic Formula has been tested and recommended for intensive vaname shrimp, with clear performance data: SR increases by 10–15%, Vibrio population drops by 40%, ammonia stable <0.1 ppm, and water exchange reduced by 30%.

### Correct Application Method

This product is applied by direct broadcasting into the pond, dose 5 L per hectare, every 7–10 days. Shake the container before use and distribute evenly across the pond area, especially at points of organic accumulation.

Conclusion

Addressing slow shrimp growth in ponds requires a holistic approach, and probiotics are one very effective tool if used correctly. Avoid the seven mistakes above: understand probiotic mechanisms, use correct dosage and frequency, apply at the right time, monitor water quality, integrate with Vibrio control, be consistent in application, and choose officially registered products. By using Biosolution's Vaname Shrimp Pond Probiotic Formula, you can increase shrimp SR by up to 15%, suppress Vibrio, and reduce water exchange. For further consultation, contact our technical team via WhatsApp.

References:

• Food and Agriculture Organization (FAO). Probiotics in Aquaculture.
• Ministry of Marine Affairs and Fisheries of Indonesia. Vaname Shrimp Cultivation Guidelines.