Open-pond carp pilot at Nadipar, Assam
Several NanoAer 10 units in a 0.5-acre pond over 100 days, with oxygen, ammonia, pH and growth data. No control pond was run.
Summary
In a 0.5-acre open earthen pond at Nadipar, Assam, several NanoAer 10 units ran for 100 days over a stocked cycle of rohu, mrigal, grass carp and catla.
By day 90, dissolved oxygen rose from 3.5 to 7.6 mg/L, ammonia went from 1.0 ppm to not detected and pH moved from 6.2 to 7.6. By day 100, pond biomass had grown from about 130 kg to about 453 kg (about 3.5 times).
There was no control pond. We present this as field evidence, not a controlled trial.
- Pilot initiated by
- Avior Life Sciences Private Limited
- Location
- Nadipar (Satdala), Assam
- Dates
- 6 April to 10 July 2026 (100 days; closing water readings on day 90)
- Equipment
- Several NanoAer 10 units (1.6 kW, 10 LPM and 15 m³/hr each) in one 0.5-acre earthen pond
- Pond
- Open earthen pond, 0.5 acre (about 2,023 m²)
Water quality
| Parameter | Day 1 (6 Apr 2026) | Day 90 (3 Jul 2026) |
|---|---|---|
| Dissolved oxygen (mg/L) | 3.5 | 7.6 |
| Ammonia (ppm) | 1 | not detected |
| pH | 6.2 | 7.6 |
| TDS (ppm) | 144 | 143 |
| Temperature (°C) | 26 | 35 |
Growth and biomass
| Species | Day 1 (g) | Day 100 (g) | Weight multiple |
|---|---|---|---|
| Rohu | 60 | 460 | 7.67× |
| Mrigal | 60 | 350 | 5.83× |
| Grass carp | 75 | 1,020 | 13.60× |
| Catla | 100 | 892 | 8.92× |
Total pond biomass rose from about 130 kg to about 453 kg, an increase of about 323 kg. Grass carp grew most, from 75 g to 1,020 g. Fish were stocked in staggered batches during April 2026.
What this data does not show
- No control pond, so the changes cannot be attributed to the nanobubble generators alone.
- Water temperature rose from 26 to 35 °C over the cycle, which affects both oxygen and growth.
- Only the day-1 and day-90 water readings are reported. Intermediate readings are held in field records.
- Survival, feed use and FCR were not recorded, so we make no feed or economic claims.
- The report recommends a matched control pond with morning and evening oxygen readings in the next cycle.
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