High
Incorrect Salinity
Salinity directly affects the energy fish spend on osmoregulation. Marine species in low-salinity water and freshwater species in brackish water both suffer chronic stress. A reliable refractometer or conductivity meter is essential for any brackish or marine system.
Symptoms & Signs
- Slowed growth despite adequate feeding
- Reduced spawning success
- Increased susceptibility to disease
Common Causes
- Evaporation concentrates salt in marine systems
- Freshwater inflow dilutes brackish ponds
- Inaccurate or uncalibrated measurement tools
Species & Temperature Context
Water-quality parameters vary significantly by species, water temperature, production system, and local regulations. The ranges shown throughout this site are general guides based on common aquaculture species (tilapia, catfish, shrimp, trout). Always verify parameters for your specific species with a local aquaculture extension service or research institution before making management decisions.
Recommended Tools
Top Products for This Problem
| Check Price | ||||||
|---|---|---|---|---|---|---|
| SALINITY-METER-PRO | 0–50 ppt salinity / 0–200 mS/cm | Two-point (standard solutions) | Electrode conductivity cell | IP67 (waterproof) | $$ | Check Price |
| MULTIPARAMETER-PRO-900 | pH 0–14; DO 0–20 mg/L; Cond 0–200 mS/cm; Temp −5–80°C | Multi-point auto-recognition per parameter | Integrated quad-sensor probe head | IP67 (handheld), IP68 (probe) | $$$ | Check Price |